21110132321031 has 16 divisors (see below), whose sum is σ = 30312268402304. Its totient is φ = 12990729145824.

The previous prime is 21110132321011. The next prime is 21110132321051. The reversal of 21110132321031 is 13012323101112.

It is an interprime number because it is at equal distance from previous prime (21110132321011) and next prime (21110132321051).

It is not a de Polignac number, because 21110132321031 - 2¹⁴ = 21110132304647 is a prime.

It is a super-2 number, since 2×21110132321031² (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 = 21110132320989 and 21110132321007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110132321011) 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, 1784520 + ... + 6738306.

It is an arithmetic number, because the mean of its divisors is an integer number (1894516775144).

Almost surely, 2^{21110132321031} is an apocalyptic number.

21110132321031 is a deficient number, since it is larger than the sum of its proper divisors (9202136081273).

21110132321031 is a wasteful number, since it uses less digits than its factorization.

21110132321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063070.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 21110132321031 its reverse (13012323101112), we get a palindrome (34122455422143).

The spelling of 21110132321031 in words is "twenty-one trillion, one hundred ten billion, one hundred thirty-two million, three hundred twenty-one thousand, thirty-one".