131211234034434 has 24 divisors (see below), whose sum is σ = 284333056000812. Its totient is φ = 43730608945920.

The previous prime is 131211234034429. The next prime is 131211234034469. The reversal of 131211234034434 is 434430432112131.

131211234034434 is a `hidden beast` number, since 1 + 3 + 1 + 211 + 2 + 3 + 4 + 0 + 3 + 4 + 434 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 130505376971025 + 705857063409 = 11423895^2 + 840153^2 .

It is a super-2 number, since 2×131211234034434² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 538963719 + ... + 539207114.

Almost surely, 2^{131211234034434} is an apocalyptic number.

131211234034434 is an abundant number, since it is smaller than the sum of its proper divisors (153121821966378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131211234034434 is a wasteful number, since it uses less digits than its factorization.

131211234034434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078177602 (or 1078177599 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Adding to 131211234034434 its reverse (434430432112131), we get a palindrome (565641666146565).

The spelling of 131211234034434 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred thirty-four million, thirty-four thousand, four hundred thirty-four".