23145231140454 has 32 divisors (see below), whose sum is σ = 47420273789280. Its totient is φ = 7526781286400.

The previous prime is 23145231140441. The next prime is 23145231140489. The reversal of 23145231140454 is 45404113254132.

It is a super-2 number, since 2×23145231140454² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14947402 + ... + 16423010.

It is an arithmetic number, because the mean of its divisors is an integer number (1481883555915).

Almost surely, 2^{23145231140454} is an apocalyptic number.

23145231140454 is an abundant number, since it is smaller than the sum of its proper divisors (24275042648826).

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

23145231140454 is a wasteful number, since it uses less digits than its factorization.

23145231140454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539416.

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 23145231140454 its reverse (45404113254132), we get a palindrome (68549344394586).

The spelling of 23145231140454 in words is "twenty-three trillion, one hundred forty-five billion, two hundred thirty-one million, one hundred forty thousand, four hundred fifty-four".