231522001131434 has 32 divisors (see below), whose sum is σ = 374856111829584. Its totient is φ = 106610929274880.

The previous prime is 231522001131413. The next prime is 231522001131461. The reversal of 231522001131434 is 434131100225132.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3584565957025 + 227937435174409 = 1893295^2 + 15097597^2 .

It is a super-2 number, since 2×231522001131434² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231522001131434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93139052 + ... + 95592504.

Almost surely, 2^{231522001131434} is an apocalyptic number.

231522001131434 is a deficient number, since it is larger than the sum of its proper divisors (143334110698150).

231522001131434 is a wasteful number, since it uses less digits than its factorization.

231522001131434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461802.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 231522001131434 its reverse (434131100225132), we get a palindrome (665653101356566).

The spelling of 231522001131434 in words is "two hundred thirty-one trillion, five hundred twenty-two billion, one million, one hundred thirty-one thousand, four hundred thirty-four".