31230138754055 has 4 divisors (see below), whose sum is σ = 37476166504872. Its totient is φ = 24984111003240.

The previous prime is 31230138754039. The next prime is 31230138754081. The reversal of 31230138754055 is 55045783103213.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 31230138754055 - 2⁴ = 31230138754039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3123013875401 + ... + 3123013875410.

It is an arithmetic number, because the mean of its divisors is an integer number (9369041626218).

Almost surely, 2^{31230138754055} is an apocalyptic number.

31230138754055 is a deficient number, since it is larger than the sum of its proper divisors (6246027750817).

31230138754055 is an equidigital number, since it uses as much as digits as its factorization.

31230138754055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6246027750816.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 31230138754055 in words is "thirty-one trillion, two hundred thirty billion, one hundred thirty-eight million, seven hundred fifty-four thousand, fifty-five".