1210012311320 has 32 divisors (see below), whose sum is σ = 2760873167520. Its totient is φ = 477187952640.

The previous prime is 1210012311143. The next prime is 1210012311349. The reversal of 1210012311320 is 231132100121.

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, 213027497 + ... + 213033176.

It is an arithmetic number, because the mean of its divisors is an integer number (86277286485).

Almost surely, 2^{1210012311320} is an apocalyptic number.

1210012311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210012311320 is an abundant number, since it is smaller than the sum of its proper divisors (1550860856200).

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

1210012311320 is a wasteful number, since it uses less digits than its factorization.

1210012311320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426060755 (or 426060751 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1210012311320 its reverse (231132100121), we get a palindrome (1441144411441).

The spelling of 1210012311320 in words is "one trillion, two hundred ten billion, twelve million, three hundred eleven thousand, three hundred twenty".