931227020722139 has 4 divisors (see below), whose sum is σ = 931290676968960. Its totient is φ = 931163364475320.

The previous prime is 931227020722013. The next prime is 931227020722157.

931227020722139 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 931227020722139 - 2³² = 931222725754843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (931227020722169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31828101467 + ... + 31828130724.

It is an arithmetic number, because the mean of its divisors is an integer number (232822669242240).

Almost surely, 2^{931227020722139} is an apocalyptic number.

931227020722139 is a deficient number, since it is larger than the sum of its proper divisors (63656246821).

931227020722139 is a wasteful number, since it uses less digits than its factorization.

931227020722139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63656246820.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 931227020722139 in words is "nine hundred thirty-one trillion, two hundred twenty-seven billion, twenty million, seven hundred twenty-two thousand, one hundred thirty-nine".