21030023001131 has 16 divisors (see below), whose sum is σ = 22191548797440. Its totient is φ = 19873984572000.

The previous prime is 21030023001107. The next prime is 21030023001149. The reversal of 21030023001131 is 13110032003012.

It is not a de Polignac number, because 21030023001131 - 2⁶ = 21030023001067 is a prime.

It is a super-2 number, since 2×21030023001131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21030023001101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39726221 + ... + 40252113.

It is an arithmetic number, because the mean of its divisors is an integer number (1386971799840).

Almost surely, 2^{21030023001131} is an apocalyptic number.

21030023001131 is a deficient number, since it is larger than the sum of its proper divisors (1161525796309).

21030023001131 is a wasteful number, since it uses less digits than its factorization.

21030023001131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531106.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21030023001131 its reverse (13110032003012), we get a palindrome (34140055004143).

The spelling of 21030023001131 in words is "twenty-one trillion, thirty billion, twenty-three million, one thousand, one hundred thirty-one".