1231133031330 has 32 divisors (see below), whose sum is σ = 2954978311104. Its totient is φ = 328273359936.

The previous prime is 1231133031329. The next prime is 1231133031389. The reversal of 1231133031330 is 331303311321.

It is a super-3 number, since 3×1231133031330³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1231133031330.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1449849 + ... + 2136428.

It is an arithmetic number, because the mean of its divisors is an integer number (92343072222).

Almost surely, 2^{1231133031330} is an apocalyptic number.

1231133031330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231133031330 is an abundant number, since it is smaller than the sum of its proper divisors (1723845279774).

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

1231133031330 is a wasteful number, since it uses less digits than its factorization.

1231133031330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597730.

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 1231133031330 its reverse (331303311321), we get a palindrome (1562436342651).

The spelling of 1231133031330 in words is "one trillion, two hundred thirty-one billion, one hundred thirty-three million, thirty-one thousand, three hundred thirty".