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23011232131013 = 7149179197625657
BaseRepresentation
bin1010011101101101110000…
…10100010010011111000101
310000110212000022222011020012
411032312320110102133011
511004004000411143023
6120535114125120005
74563335532561440
oct516667024223705
9100425008864205
1023011232131013
117372010700015
1226b78930b9005
13cabc46b654b9
14597a6cbac657
1529d89571d978
hex14edb85127c5

23011232131013 has 32 divisors (see below), whose sum is σ = 26758141344000. Its totient is φ = 19383163236864.

The previous prime is 23011232130989. The next prime is 23011232131057. The reversal of 23011232131013 is 31013123211032.

It is not a de Polignac number, because 23011232131013 - 212 = 23011232126917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23011232131013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011232131073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36466481 + ... + 37092137.

It is an arithmetic number, because the mean of its divisors is an integer number (836191917000).

Almost surely, 223011232131013 is an apocalyptic number.

It is an amenable number.

23011232131013 is a deficient number, since it is larger than the sum of its proper divisors (3746909212987).

23011232131013 is a wasteful number, since it uses less digits than its factorization.

23011232131013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626189.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 23011232131013 its reverse (31013123211032), we get a palindrome (54024355342045).

The spelling of 23011232131013 in words is "twenty-three trillion, eleven billion, two hundred thirty-two million, one hundred thirty-one thousand, thirteen".

Divisors: 1 7 149 179 197 1043 1253 1379 26671 29353 35263 186697 205471 246841 625657 4379599 5254187 36779309 93222893 111992603 123254429 652560251 783948221 862781003 16686897847 18364909921 22062542791 116808284929 128554369447 154437799537 3287318875859 23011232131013