1310120233021 has 4 divisors (see below), whose sum is σ = 1310132416032. Its totient is φ = 1310108050012.

The previous prime is 1310120232973. The next prime is 1310120233057. The reversal of 1310120233021 is 1203320210131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1310120233021 - 2⁷ = 1310120232893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1310120233021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310120233421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5928751 + ... + 6145756.

It is an arithmetic number, because the mean of its divisors is an integer number (327533104008).

Almost surely, 2^{1310120233021} is an apocalyptic number.

It is an amenable number.

1310120233021 is a deficient number, since it is larger than the sum of its proper divisors (12183011).

1310120233021 is a wasteful number, since it uses less digits than its factorization.

1310120233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12183010.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1310120233021 its reverse (1203320210131), we get a palindrome (2513440443152).

The spelling of 1310120233021 in words is "one trillion, three hundred ten billion, one hundred twenty million, two hundred thirty-three thousand, twenty-one".