1331551131330 has 32 divisors (see below), whose sum is σ = 3652254532224. Its totient is φ = 304354544256.

The previous prime is 1331551131263. The next prime is 1331551131349. The reversal of 1331551131330 is 331311551331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 3170359627 + ... + 3170360046.

It is an arithmetic number, because the mean of its divisors is an integer number (114132954132).

Almost surely, 2^{1331551131330} is an apocalyptic number.

1331551131330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331551131330 is an abundant number, since it is smaller than the sum of its proper divisors (2320703400894).

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

1331551131330 is a wasteful number, since it uses less digits than its factorization.

1331551131330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6340719690.

The product of its (nonzero) digits is 6075, while the sum is 30.

Adding to 1331551131330 its reverse (331311551331), we get a palindrome (1662862682661).

The spelling of 1331551131330 in words is "one trillion, three hundred thirty-one billion, five hundred fifty-one million, one hundred thirty-one thousand, three hundred thirty".