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10313021131 = 7331969907
BaseRepresentation
bin10011001101011010…
…00011011011001011
3222121201202202101121
421212231003123023
5132110113134011
64423203500111
7513365143000
oct114655033313
928551682347
1010313021131
114412482466
121bb9987637
13c847c6c8a
146db9658a7
154055dee71
hex266b436cb

10313021131 has 16 divisors (see below), whose sum is σ = 12414822400. Its totient is φ = 8554570920.

The previous prime is 10313021113. The next prime is 10313021177. The reversal of 10313021131 is 13112031301.

It is not a de Polignac number, because 10313021131 - 211 = 10313019083 is a prime.

It is a super-2 number, since 2×103130211312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10313021231) 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, 474321 + ... + 495586.

It is an arithmetic number, because the mean of its divisors is an integer number (775926400).

Almost surely, 210313021131 is an apocalyptic number.

10313021131 is a deficient number, since it is larger than the sum of its proper divisors (2101801269).

10313021131 is an frugal number, since it uses more digits than its factorization.

10313021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969959 (or 969945 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 10313021131 its reverse (13112031301), we get a palindrome (23425052432).

The spelling of 10313021131 in words is "ten billion, three hundred thirteen million, twenty-one thousand, one hundred thirty-one".

Divisors: 1 7 31 49 217 343 1519 10633 969907 6789349 30067117 47525443 210469819 332678101 1473288733 10313021131