131023502454 has 64 divisors (see below), whose sum is σ = 290029307904. Its totient is φ = 39198577536.

The previous prime is 131023502419. The next prime is 131023502479. The reversal of 131023502454 is 454205320131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4438387 + ... + 4467809.

It is an arithmetic number, because the mean of its divisors is an integer number (4531707936).

Almost surely, 2^131023502454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131023502454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145014653952).

131023502454 is an abundant number, since it is smaller than the sum of its proper divisors (159005805450).

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

131023502454 is a wasteful number, since it uses less digits than its factorization.

131023502454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31021.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 131023502454 its reverse (454205320131), we get a palindrome (585228822585).

The spelling of 131023502454 in words is "one hundred thirty-one billion, twenty-three million, five hundred two thousand, four hundred fifty-four".