31233120001320 has 32 divisors (see below), whose sum is σ = 93699360004320. Its totient is φ = 8328832000320.

The previous prime is 31233120001241. The next prime is 31233120001417. The reversal of 31233120001320 is 2310002133213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130137999886 + ... + 130138000125.

It is an arithmetic number, because the mean of its divisors is an integer number (2928105000135).

Almost surely, 2^{31233120001320} is an apocalyptic number.

31233120001320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31233120001320 is an abundant number, since it is smaller than the sum of its proper divisors (62466240003000).

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

31233120001320 is a wasteful number, since it uses less digits than its factorization.

31233120001320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260276000025 (or 260276000021 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31233120001320 its reverse (2310002133213), we get a palindrome (33543122134533).

The spelling of 31233120001320 in words is "thirty-one trillion, two hundred thirty-three billion, one hundred twenty million, one thousand, three hundred twenty".