313100020121021 has 8 divisors (see below), whose sum is σ = 378877335272640. Its totient is φ = 252584890181568.

The previous prime is 313100020121003. The next prime is 313100020121107. The reversal of 313100020121021 is 120121020001313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313100020121021 - 2²⁶ = 313099953012157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313100020121521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1315546302911 + ... + 1315546303148.

It is an arithmetic number, because the mean of its divisors is an integer number (47359666909080).

Almost surely, 2^{313100020121021} is an apocalyptic number.

It is an amenable number.

313100020121021 is a deficient number, since it is larger than the sum of its proper divisors (65777315151619).

313100020121021 is a wasteful number, since it uses less digits than its factorization.

313100020121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631092606083.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 313100020121021 its reverse (120121020001313), we get a palindrome (433221040122334).

The spelling of 313100020121021 in words is "three hundred thirteen trillion, one hundred billion, twenty million, one hundred twenty-one thousand, twenty-one".