31413066623 has 4 divisors (see below), whose sum is σ = 31561943928. Its totient is φ = 31264189320.

The previous prime is 31413066617. The next prime is 31413066631. The reversal of 31413066623 is 32666031413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31413066623 - 2⁸ = 31413066367 is a prime.

It is a super-2 number, since 2×31413066623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31413066323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74438336 + ... + 74438757.

It is an arithmetic number, because the mean of its divisors is an integer number (7890485982).

Almost surely, 2^31413066623 is an apocalyptic number.

31413066623 is a deficient number, since it is larger than the sum of its proper divisors (148877305).

31413066623 is a wasteful number, since it uses less digits than its factorization.

31413066623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148877304.

The product of its (nonzero) digits is 46656, while the sum is 35.

The spelling of 31413066623 in words is "thirty-one billion, four hundred thirteen million, sixty-six thousand, six hundred twenty-three".