1231204138754 has 16 divisors (see below), whose sum is σ = 1854962036928. Its totient is φ = 612886323312.

The previous prime is 1231204138669. The next prime is 1231204138783. The reversal of 1231204138754 is 4578314021321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146129 + ... + 1575995.

It is an arithmetic number, because the mean of its divisors is an integer number (115935127308).

Almost surely, 2^{1231204138754} is an apocalyptic number.

1231204138754 is a deficient number, since it is larger than the sum of its proper divisors (623757898174).

1231204138754 is a wasteful number, since it uses less digits than its factorization.

1231204138754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431769.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 1231204138754 in words is "one trillion, two hundred thirty-one billion, two hundred four million, one hundred thirty-eight thousand, seven hundred fifty-four".