2312423031555 has 128 divisors (see below), whose sum is σ = 5325959116800. Its totient is φ = 924434145792.

The previous prime is 2312423031539. The next prime is 2312423031557. The reversal of 2312423031555 is 5551303242132.

2312423031555 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 42 + 30 + 31 + 555 = 666.

It is not a de Polignac number, because 2312423031555 - 2⁴ = 2312423031539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2312423031557) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4720044 + ... + 5186873.

It is an arithmetic number, because the mean of its divisors is an integer number (41609055600).

Almost surely, 2^{2312423031555} is an apocalyptic number.

2312423031555 is an abundant number, since it is smaller than the sum of its proper divisors (3013536085245).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2312423031555 is a wasteful number, since it uses less digits than its factorization.

2312423031555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9906970 (or 9906964 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 2312423031555 its reverse (5551303242132), we get a palindrome (7863726273687).

The spelling of 2312423031555 in words is "two trillion, three hundred twelve billion, four hundred twenty-three million, thirty-one thousand, five hundred fifty-five".