1333131220 has 24 divisors (see below), whose sum is σ = 2810231424. Its totient is φ = 531222816.

The previous prime is 1333131209. The next prime is 1333131251. The reversal of 1333131220 is 221313331.

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, 121464 + ... + 131983.

It is an arithmetic number, because the mean of its divisors is an integer number (117092976).

Almost surely, 2^1333131220 is an apocalyptic number.

1333131220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1333131220 is an abundant number, since it is smaller than the sum of its proper divisors (1477100204).

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

1333131220 is a wasteful number, since it uses less digits than its factorization.

1333131220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253719 (or 253717 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1333131220 is about 36512.0695113273. The cubic root of 1333131220 is about 1100.5867998610.

Adding to 1333131220 its reverse (221313331), we get a palindrome (1554444551).

It can be divided in two parts, 13331 and 31220, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 1333131220 in words is "one billion, three hundred thirty-three million, one hundred thirty-one thousand, two hundred twenty".