131021423121302 has 32 divisors (see below), whose sum is σ = 231854637987840. Its totient is φ = 54340434023040.

The previous prime is 131021423121301. The next prime is 131021423121311. The reversal of 131021423121302 is 203121324120131.

It is a super-2 number, since 2×131021423121302² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021423121301) 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, 117780398 + ... + 118887614.

It is an arithmetic number, because the mean of its divisors is an integer number (7245457437120).

Almost surely, 2^{131021423121302} is an apocalyptic number.

131021423121302 is a deficient number, since it is larger than the sum of its proper divisors (100833214866538).

131021423121302 is a wasteful number, since it uses less digits than its factorization.

131021423121302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379916.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 131021423121302 its reverse (203121324120131), we get a palindrome (334142747241433).

The spelling of 131021423121302 in words is "one hundred thirty-one trillion, twenty-one billion, four hundred twenty-three million, one hundred twenty-one thousand, three hundred two".