131445023121402 has 8 divisors (see below), whose sum is σ = 262890046242816. Its totient is φ = 43815007707132.

The previous prime is 131445023121397. The next prime is 131445023121479. The reversal of 131445023121402 is 204121320544131.

It is a sphenic number, since it is the product of 3 distinct primes.

131445023121402 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10953751926778 + ... + 10953751926789.

It is an arithmetic number, because the mean of its divisors is an integer number (32861255780352).

Almost surely, 2^{131445023121402} is an apocalyptic number.

131445023121402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131445023121402 is a wasteful number, since it uses less digits than its factorization.

131445023121402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21907503853572.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 131445023121402 its reverse (204121320544131), we get a palindrome (335566343665533).

The spelling of 131445023121402 in words is "one hundred thirty-one trillion, four hundred forty-five billion, twenty-three million, one hundred twenty-one thousand, four hundred two".