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101311021340 = 2255065551067
BaseRepresentation
bin101111001011010011…
…0111000000100011100
3100200111112120010102122
41132112212320010130
53124441110140330
6114312554442112
710214403321104
oct1362646700434
9320445503378
10101311021340
1139a69480911
1217774a33338
139727306109
144c91210204
15297e3a55e5
hex17969b811c

101311021340 has 12 divisors (see below), whose sum is σ = 212753144856. Its totient is φ = 40524408528.

The previous prime is 101311021333. The next prime is 101311021349. The reversal of 101311021340 is 43120113101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101311021349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2532775514 + ... + 2532775553.

It is an arithmetic number, because the mean of its divisors is an integer number (17729428738).

Almost surely, 2101311021340 is an apocalyptic number.

101311021340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101311021340 is an abundant number, since it is smaller than the sum of its proper divisors (111442123516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101311021340 is a wasteful number, since it uses less digits than its factorization.

101311021340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065551076 (or 5065551074 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 101311021340 its reverse (43120113101), we get a palindrome (144431134441).

The spelling of 101311021340 in words is "one hundred one billion, three hundred eleven million, twenty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 5065551067 10131102134 20262204268 25327755335 50655510670 101311021340