31123032300131 has 8 divisors (see below), whose sum is σ = 32503706551584. Its totient is φ = 29744649626560.

The previous prime is 31123032300127. The next prime is 31123032300137. The reversal of 31123032300131 is 13100323032113.

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 31123032300131 - 2² = 31123032300127 is a prime.

It is a super-2 number, since 2×31123032300131² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31123032300097 and 31123032300106.

It is not an unprimeable number, because it can be changed into a prime (31123032300137) 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, 572866706 + ... + 572921031.

It is an arithmetic number, because the mean of its divisors is an integer number (4062963318948).

Almost surely, 2^{31123032300131} is an apocalyptic number.

31123032300131 is a deficient number, since it is larger than the sum of its proper divisors (1380674251453).

31123032300131 is a wasteful number, since it uses less digits than its factorization.

31123032300131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145788941.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31123032300131 its reverse (13100323032113), we get a palindrome (44223355332244).

The spelling of 31123032300131 in words is "thirty-one trillion, one hundred twenty-three billion, thirty-two million, three hundred thousand, one hundred thirty-one".