1310323101021 has 32 divisors (see below), whose sum is σ = 2153587046400. Its totient is φ = 780675283440.

The previous prime is 1310323101013. The next prime is 1310323101023. The reversal of 1310323101021 is 1201013230131.

1310323101021 is a `hidden beast` number, since 1 + 310 + 32 + 310 + 10 + 2 + 1 = 666.

It is not a de Polignac number, because 1310323101021 - 2³ = 1310323101013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1310323100985 and 1310323101003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310323101023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37371141 + ... + 37406186.

It is an arithmetic number, because the mean of its divisors is an integer number (67299595200).

Almost surely, 2^{1310323101021} is an apocalyptic number.

1310323101021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1310323101021 is a deficient number, since it is larger than the sum of its proper divisors (843263945379).

1310323101021 is a wasteful number, since it uses less digits than its factorization.

1310323101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74777406 (or 74777400 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1310323101021 its reverse (1201013230131), we get a palindrome (2511336331152).

It can be divided in two parts, 1310323 and 101021, that added together give a square (1411344 = 1188²).

The spelling of 1310323101021 in words is "one trillion, three hundred ten billion, three hundred twenty-three million, one hundred one thousand, twenty-one".