231130233011477 has 2 divisors, whose sum is σ = 231130233011478. Its totient is φ = 231130233011476.

The previous prime is 231130233011341. The next prime is 231130233011501. The reversal of 231130233011477 is 774110332031132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146565913686481 + 84564319324996 = 12106441^2 + 9195886^2 .

It is a cyclic number.

It is not a de Polignac number, because 231130233011477 - 2¹⁴ = 231130232995093 is a prime.

It is a super-2 number, since 2×231130233011477² (a number of 30 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 231130233011477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231130233010477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115565116505738 + 115565116505739.

It is an arithmetic number, because the mean of its divisors is an integer number (115565116505739).

Almost surely, 2^{231130233011477} is an apocalyptic number.

It is an amenable number.

231130233011477 is a deficient number, since it is larger than the sum of its proper divisors (1).

231130233011477 is an equidigital number, since it uses as much as digits as its factorization.

231130233011477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 231130233011477 in words is "two hundred thirty-one trillion, one hundred thirty billion, two hundred thirty-three million, eleven thousand, four hundred seventy-seven".