31321102320130 has 32 divisors (see below), whose sum is σ = 65023101031680. Its totient is φ = 10640143800000.

The previous prime is 31321102320083. The next prime is 31321102320149. The reversal of 31321102320130 is 3102320112313.

It is a super-2 number, since 2×31321102320130² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2052489246 + ... + 2052504505.

It is an arithmetic number, because the mean of its divisors is an integer number (2031971907240).

Almost surely, 2^{31321102320130} is an apocalyptic number.

31321102320130 is an abundant number, since it is smaller than the sum of its proper divisors (33701998711550).

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

31321102320130 is a wasteful number, since it uses less digits than its factorization.

31321102320130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104993874.

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

Adding to 31321102320130 its reverse (3102320112313), we get a palindrome (34423422432443).

The spelling of 31321102320130 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred two million, three hundred twenty thousand, one hundred thirty".