21023331300131 has 4 divisors (see below), whose sum is σ = 21025885473264. Its totient is φ = 21020777127000.

The previous prime is 21023331300079. The next prime is 21023331300133. The reversal of 21023331300131 is 13100313332012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21023331300131 is a prime.

It is a super-2 number, since 2×21023331300131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21023331300097 and 21023331300106.

It is not an unprimeable number, because it can be changed into a prime (21023331300133) 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, 1277074220 + ... + 1277090681.

It is an arithmetic number, because the mean of its divisors is an integer number (5256471368316).

Almost surely, 2^{21023331300131} is an apocalyptic number.

21023331300131 is a deficient number, since it is larger than the sum of its proper divisors (2554173133).

21023331300131 is an equidigital number, since it uses as much as digits as its factorization.

21023331300131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554173132.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 21023331300131 its reverse (13100313332012), we get a palindrome (34123644632143).

The spelling of 21023331300131 in words is "twenty-one trillion, twenty-three billion, three hundred thirty-one million, three hundred thousand, one hundred thirty-one".