15451131423 has 16 divisors (see below), whose sum is σ = 25355703296. Its totient is φ = 8150047200.

The previous prime is 15451131403. The next prime is 15451131431. The reversal of 15451131423 is 32413115451.

It is a de Polignac number, because none of the positive numbers 2^k-15451131423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15451131403) 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, 28298503 + ... + 28299048.

It is an arithmetic number, because the mean of its divisors is an integer number (1584731456).

Almost surely, 2^15451131423 is an apocalyptic number.

15451131423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15451131423 is a deficient number, since it is larger than the sum of its proper divisors (9904571873).

15451131423 is a wasteful number, since it uses less digits than its factorization.

15451131423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56597574.

The product of its digits is 7200, while the sum is 30.

Adding to 15451131423 its reverse (32413115451), we get a palindrome (47864246874).

The spelling of 15451131423 in words is "fifteen billion, four hundred fifty-one million, one hundred thirty-one thousand, four hundred twenty-three".