1331351102042 has 32 divisors (see below), whose sum is σ = 2191458583440. Its totient is φ = 602810956800.

The previous prime is 1331351102023. The next prime is 1331351102047. The reversal of 1331351102042 is 2402011531331.

It can be written as a sum of positive squares in 8 ways, for example, as 933617805121 + 397733296921 = 966239^2 + 630661^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1331351102047) by changing a digit.

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, 14131292 + ... + 14225192.

Almost surely, 2^{1331351102042} is an apocalyptic number.

1331351102042 is a deficient number, since it is larger than the sum of its proper divisors (860107481398).

1331351102042 is a wasteful number, since it uses less digits than its factorization.

1331351102042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104258.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 1331351102042 its reverse (2402011531331), we get a palindrome (3733362633373).

The spelling of 1331351102042 in words is "one trillion, three hundred thirty-one billion, three hundred fifty-one million, one hundred two thousand, forty-two".