31321101320032 has 12 divisors (see below), whose sum is σ = 61663418223876. Its totient is φ = 15660550660000.

The previous prime is 31321101320011. The next prime is 31321101320039. The reversal of 31321101320032 is 23002310112313.

It is a super-2 number, since 2×31321101320032² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31321101319985 and 31321101320012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321101320039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489392208094 + ... + 489392208157.

It is an arithmetic number, because the mean of its divisors is an integer number (5138618185323).

Almost surely, 2^{31321101320032} is an apocalyptic number.

31321101320032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31321101320032 is a deficient number, since it is larger than the sum of its proper divisors (30342316903844).

31321101320032 is an equidigital number, since it uses as much as digits as its factorization.

31321101320032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978784416261 (or 978784416253 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31321101320032 its reverse (23002310112313), we get a palindrome (54323411432345).

The spelling of 31321101320032 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred one million, three hundred twenty thousand, thirty-two".