12123131241431 has 8 divisors (see below), whose sum is σ = 14670007552800. Its totient is φ = 9780005035008.

The previous prime is 12123131241421. The next prime is 12123131241443. The reversal of 12123131241431 is 13414213132121.

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

It is not a de Polignac number, because 12123131241431 - 2³⁸ = 11848253334487 is a prime.

It is a super-2 number, since 2×12123131241431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12123131241394 and 12123131241403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123131241421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50937526106 + ... + 50937526343.

It is an arithmetic number, because the mean of its divisors is an integer number (1833750944100).

Almost surely, 2^{12123131241431} is an apocalyptic number.

12123131241431 is a deficient number, since it is larger than the sum of its proper divisors (2546876311369).

12123131241431 is a wasteful number, since it uses less digits than its factorization.

12123131241431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101875052473.

The product of its digits is 3456, while the sum is 29.

Adding to 12123131241431 its reverse (13414213132121), we get a palindrome (25537344373552).

The spelling of 12123131241431 in words is "twelve trillion, one hundred twenty-three billion, one hundred thirty-one million, two hundred forty-one thousand, four hundred thirty-one".