31423326630 has 16 divisors (see below), whose sum is σ = 75415983984. Its totient is φ = 8379553760.

The previous prime is 31423326629. The next prime is 31423326647. The reversal of 31423326630 is 3662332413.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31423326591 and 31423326600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523722081 + ... + 523722140.

It is an arithmetic number, because the mean of its divisors is an integer number (4713498999).

Almost surely, 2^31423326630 is an apocalyptic number.

31423326630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31423326630 is an abundant number, since it is smaller than the sum of its proper divisors (43992657354).

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

31423326630 is a wasteful number, since it uses less digits than its factorization.

31423326630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047444231.

The product of its (nonzero) digits is 46656, while the sum is 33.

The spelling of 31423326630 in words is "thirty-one billion, four hundred twenty-three million, three hundred twenty-six thousand, six hundred thirty".