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131203311425 = 5246711237971
BaseRepresentation
bin111101000110001010…
…0111010011101000001
3110112122210011210120122
41322030110322131001
54122201021431200
6140135102150025
712323224513634
oct1721424723501
9415583153518
10131203311425
115070893788a
1221517882315
13c4ac288324
1464c921bc1b
15362d805385
hex1e8c53a741

131203311425 has 12 divisors (see below), whose sum is σ = 163040497776. Its totient is φ = 104737880400.

The previous prime is 131203311383. The next prime is 131203311439. The reversal of 131203311425 is 524113302131.

It is not a de Polignac number, because 131203311425 - 216 = 131203245889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131203311394 and 131203311403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5607311 + ... + 5630660.

It is an arithmetic number, because the mean of its divisors is an integer number (13586708148).

Almost surely, 2131203311425 is an apocalyptic number.

It is an amenable number.

131203311425 is a deficient number, since it is larger than the sum of its proper divisors (31837186351).

131203311425 is a wasteful number, since it uses less digits than its factorization.

131203311425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11238448 (or 11238443 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 131203311425 its reverse (524113302131), we get a palindrome (655316613556).

The spelling of 131203311425 in words is "one hundred thirty-one billion, two hundred three million, three hundred eleven thousand, four hundred twenty-five".

Divisors: 1 5 25 467 2335 11675 11237971 56189855 280949275 5248132457 26240662285 131203311425