1231111304434 has 64 divisors (see below), whose sum is σ = 2135075604480. Its totient is φ = 527173920000.

The previous prime is 1231111304429. The next prime is 1231111304443. The reversal of 1231111304434 is 4344031111321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6019759 + ... + 6220909.

It is an arithmetic number, because the mean of its divisors is an integer number (33360556320).

Almost surely, 2^{1231111304434} is an apocalyptic number.

1231111304434 is a deficient number, since it is larger than the sum of its proper divisors (903964300046).

1231111304434 is a wasteful number, since it uses less digits than its factorization.

1231111304434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201427.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 1231111304434 its reverse (4344031111321), we get a palindrome (5575142415755).

The spelling of 1231111304434 in words is "one trillion, two hundred thirty-one billion, one hundred eleven million, three hundred four thousand, four hundred thirty-four".