131403021023021 has 24 divisors (see below), whose sum is σ = 145346991512544. Its totient is φ = 117814680984960.

The previous prime is 131403021023011. The next prime is 131403021023023. The reversal of 131403021023021 is 120320120304131.

It is not a de Polignac number, because 131403021023021 - 2³⁰ = 131401947281197 is a prime.

It is a super-3 number, since 3×131403021023021³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131403021023023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1391978195 + ... + 1392072591.

It is an arithmetic number, because the mean of its divisors is an integer number (6056124646356).

Almost surely, 2^{131403021023021} is an apocalyptic number.

131403021023021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131403021023021 is a deficient number, since it is larger than the sum of its proper divisors (13943970489523).

131403021023021 is an equidigital number, since it uses as much as digits as its factorization.

131403021023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118301 (or 118228 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 131403021023021 its reverse (120320120304131), we get a palindrome (251723141327152).

The spelling of 131403021023021 in words is "one hundred thirty-one trillion, four hundred three billion, twenty-one million, twenty-three thousand, twenty-one".