112212013155431 has 4 divisors (see below), whose sum is σ = 128242300749072. Its totient is φ = 96181725561792.

The previous prime is 112212013155419. The next prime is 112212013155467. The reversal of 112212013155431 is 134551310212211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112212013155431 - 2⁶ = 112212013155367 is a prime.

It is a super-2 number, since 2×112212013155431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112212013155131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8015143796810 + ... + 8015143796823.

It is an arithmetic number, because the mean of its divisors is an integer number (32060575187268).

Almost surely, 2^{112212013155431} is an apocalyptic number.

112212013155431 is a deficient number, since it is larger than the sum of its proper divisors (16030287593641).

112212013155431 is an equidigital number, since it uses as much as digits as its factorization.

112212013155431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16030287593640.

The product of its (nonzero) digits is 7200, while the sum is 32.

Adding to 112212013155431 its reverse (134551310212211), we get a palindrome (246763323367642).

The spelling of 112212013155431 in words is "one hundred twelve trillion, two hundred twelve billion, thirteen million, one hundred fifty-five thousand, four hundred thirty-one".