1231204138753 has 8 divisors (see below), whose sum is σ = 1232871200640. Its totient is φ = 1229537509200.

The previous prime is 1231204138669. The next prime is 1231204138783. The reversal of 1231204138753 is 3578314021321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231204138753 - 2¹³ = 1231204130561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231204138783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5809783 + ... + 6017971.

It is an arithmetic number, because the mean of its divisors is an integer number (154108900080).

Almost surely, 2^{1231204138753} is an apocalyptic number.

It is an amenable number.

1231204138753 is a deficient number, since it is larger than the sum of its proper divisors (1667061887).

1231204138753 is an equidigital number, since it uses as much as digits as its factorization.

1231204138753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216167.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 1231204138753 in words is "one trillion, two hundred thirty-one billion, two hundred four million, one hundred thirty-eight thousand, seven hundred fifty-three".