155234011431 has 4 divisors (see below), whose sum is σ = 206978681912. Its totient is φ = 103489340952.

The previous prime is 155234011397. The next prime is 155234011433. The reversal of 155234011431 is 134110432551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134110432551 = 3 ⋅44703477517.

It is not a de Polignac number, because 155234011431 - 2²⁶ = 155166902567 is a prime.

It is a super-2 number, since 2×155234011431² (a number of 23 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 (155234011433) 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, 25872335236 + ... + 25872335241.

It is an arithmetic number, because the mean of its divisors is an integer number (51744670478).

Almost surely, 2^155234011431 is an apocalyptic number.

155234011431 is a deficient number, since it is larger than the sum of its proper divisors (51744670481).

155234011431 is an equidigital number, since it uses as much as digits as its factorization.

155234011431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51744670480.

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

Adding to 155234011431 its reverse (134110432551), we get a palindrome (289344443982).

The spelling of 155234011431 in words is "one hundred fifty-five billion, two hundred thirty-four million, eleven thousand, four hundred thirty-one".