1231877105877 has 8 divisors (see below), whose sum is σ = 1791821244960. Its totient is φ = 746592185360.

The previous prime is 1231877105857. The next prime is 1231877105923. The reversal of 1231877105877 is 7785017781321.

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 1231877105877 - 2⁶ = 1231877105813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231877105807) 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, 18664804602 + ... + 18664804667.

It is an arithmetic number, because the mean of its divisors is an integer number (223977655620).

Almost surely, 2^{1231877105877} is an apocalyptic number.

It is an amenable number.

1231877105877 is a deficient number, since it is larger than the sum of its proper divisors (559944139083).

1231877105877 is a wasteful number, since it uses less digits than its factorization.

1231877105877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37329609283.

The product of its (nonzero) digits is 4609920, while the sum is 57.

The spelling of 1231877105877 in words is "one trillion, two hundred thirty-one billion, eight hundred seventy-seven million, one hundred five thousand, eight hundred seventy-seven".