1361535023121 has 48 divisors (see below), whose sum is σ = 2358098757504. Its totient is φ = 680373727488.

The previous prime is 1361535023111. The next prime is 1361535023161. The reversal of 1361535023121 is 1213205351631.

It is not a de Polignac number, because 1361535023121 - 2¹⁷ = 1361534892049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1361535023111) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 6809076 + ... + 7006181.

It is an arithmetic number, because the mean of its divisors is an integer number (49127057448).

Almost surely, 2^{1361535023121} is an apocalyptic number.

It is an amenable number.

1361535023121 is a deficient number, since it is larger than the sum of its proper divisors (996563734383).

1361535023121 is a wasteful number, since it uses less digits than its factorization.

1361535023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13815318 (or 13815299 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 1361535023121 in words is "one trillion, three hundred sixty-one billion, five hundred thirty-five million, twenty-three thousand, one hundred twenty-one".