12124532455431 has 128 divisors (see below), whose sum is σ = 18715866365952. Its totient is φ = 6914678400000.

The previous prime is 12124532455423. The next prime is 12124532455439. The reversal of 12124532455431 is 13455423542121.

12124532455431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12124532455423) and next prime (12124532455439).

It is not a de Polignac number, because 12124532455431 - 2³ = 12124532455423 is a prime.

It is a super-2 number, since 2×12124532455431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12124532455439) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2802062190 + ... + 2802066516.

It is an arithmetic number, because the mean of its divisors is an integer number (146217705984).

Almost surely, 2^{12124532455431} is an apocalyptic number.

12124532455431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12124532455431 is a deficient number, since it is larger than the sum of its proper divisors (6591333910521).

12124532455431 is a wasteful number, since it uses less digits than its factorization.

12124532455431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4893.

The product of its digits is 576000, while the sum is 42.

Adding to 12124532455431 its reverse (13455423542121), we get a palindrome (25579955997552).

The spelling of 12124532455431 in words is "twelve trillion, one hundred twenty-four billion, five hundred thirty-two million, four hundred fifty-five thousand, four hundred thirty-one".