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131311130313023 = 1814391652564597
BaseRepresentation
bin11101110110110101000001…
…010001110000000100111111
3122012221012222110000020002122
4131312311001101300010333
5114202400143330004043
61143135300034513155
736441626135402303
oct3566650121600477
9565835873006078
10131311130313023
1138926812873321
1212888b87a357bb
1358367815a205b
14245d6c7a59d03
15102aa856ee368
hex776d4147013f

131311130313023 has 8 divisors (see below), whose sum is σ = 132337373007840. Its totient is φ = 130288192748640.

The previous prime is 131311130312959. The next prime is 131311130313031. The reversal of 131311130313023 is 320313031113131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131311130313023 - 26 = 131311130312959 is a prime.

It is a super-2 number, since 2×1313111303130232 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131311130312983 and 131311130313001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131311130313073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826202840 + ... + 826361757.

It is an arithmetic number, because the mean of its divisors is an integer number (16542171625980).

Almost surely, 2131311130313023 is an apocalyptic number.

131311130313023 is a deficient number, since it is larger than the sum of its proper divisors (1026242694817).

131311130313023 is a wasteful number, since it uses less digits than its factorization.

131311130313023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652565217.

The product of its (nonzero) digits is 1458, while the sum is 26.

Adding to 131311130313023 its reverse (320313031113131), we get a palindrome (451624161426154).

The spelling of 131311130313023 in words is "one hundred thirty-one trillion, three hundred eleven billion, one hundred thirty million, three hundred thirteen thousand, twenty-three".

Divisors: 1 181 439 79459 1652564597 299114192057 725475858083 131311130313023