31403440652623 has 8 divisors (see below), whose sum is σ = 33953827347216. Its totient is φ = 28872302160000.

The previous prime is 31403440652587. The next prime is 31403440652653. The reversal of 31403440652623 is 32625604430413.

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

It is not a de Polignac number, because 31403440652623 - 2¹³ = 31403440644431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31403440652623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31403440652653) 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, 4812047098 + ... + 4812053623.

It is an arithmetic number, because the mean of its divisors is an integer number (4244228418402).

Almost surely, 2^{31403440652623} is an apocalyptic number.

31403440652623 is a deficient number, since it is larger than the sum of its proper divisors (2550386694593).

31403440652623 is a wasteful number, since it uses less digits than its factorization.

31403440652623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9624100985.

The product of its (nonzero) digits is 1244160, while the sum is 43.

The spelling of 31403440652623 in words is "thirty-one trillion, four hundred three billion, four hundred forty million, six hundred fifty-two thousand, six hundred twenty-three".