31445023305245 has 32 divisors (see below), whose sum is σ = 43121287630080. Its totient is φ = 21789682647040.

The previous prime is 31445023305239. The next prime is 31445023305247. The reversal of 31445023305245 is 54250332054413.

It is not a de Polignac number, because 31445023305245 - 2⁶ = 31445023305181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31445023305247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48036230 + ... + 48686439.

It is an arithmetic number, because the mean of its divisors is an integer number (1347540238440).

Almost surely, 2^{31445023305245} is an apocalyptic number.

It is an amenable number.

31445023305245 is a deficient number, since it is larger than the sum of its proper divisors (11676264324835).

31445023305245 is a wasteful number, since it uses less digits than its factorization.

31445023305245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96722965.

The product of its (nonzero) digits is 864000, while the sum is 41.

Adding to 31445023305245 its reverse (54250332054413), we get a palindrome (85695355359658).

The spelling of 31445023305245 in words is "thirty-one trillion, four hundred forty-five billion, twenty-three million, three hundred five thousand, two hundred forty-five".