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121300301031 = 3713444323447
BaseRepresentation
bin111000011111000001…
…1111011010011100111
3102121002121220202011220
41300332003323103213
53441410334113111
6131420302231423
711522635355340
oct1607603732347
9377077822156
10121300301031
1147496948578
121b613285573
13b5916c9370
145c29d050c7
15324e204e06
hex1c3e0fb4e7

121300301031 has 16 divisors (see below), whose sum is σ = 199056904704. Its totient is φ = 63982576224.

The previous prime is 121300300969. The next prime is 121300301033. The reversal of 121300301031 is 130103003121.

It is not a de Polignac number, because 121300301031 - 215 = 121300268263 is a prime.

It is a super-2 number, since 2×1213003010312 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121300301031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121300301033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222161451 + ... + 222161996.

It is an arithmetic number, because the mean of its divisors is an integer number (12441056544).

Almost surely, 2121300301031 is an apocalyptic number.

121300301031 is a deficient number, since it is larger than the sum of its proper divisors (77756603673).

121300301031 is a wasteful number, since it uses less digits than its factorization.

121300301031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444323470.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 121300301031 its reverse (130103003121), we get a palindrome (251403304152).

The spelling of 121300301031 in words is "one hundred twenty-one billion, three hundred million, three hundred one thousand, thirty-one".

Divisors: 1 3 7 13 21 39 91 273 444323447 1332970341 3110264129 5776204811 9330792387 17328614433 40433433677 121300301031