391137152124122 has 8 divisors (see below), whose sum is σ = 587018972040276. Its totient is φ = 195464161444032.

The previous prime is 391137152124107. The next prime is 391137152124151. The reversal of 391137152124122 is 221421251731193.

It can be written as a sum of positive squares in 2 ways, for example, as 354170983163761 + 36966168960361 = 18819431^2 + 6079981^2 .

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

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, 52207304333 + ... + 52207311824.

Almost surely, 2^{391137152124122} is an apocalyptic number.

391137152124122 is a deficient number, since it is larger than the sum of its proper divisors (195881819916154).

391137152124122 is a wasteful number, since it uses less digits than its factorization.

391137152124122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104414618032.

The product of its digits is 181440, while the sum is 44.

The spelling of 391137152124122 in words is "three hundred ninety-one trillion, one hundred thirty-seven billion, one hundred fifty-two million, one hundred twenty-four thousand, one hundred twenty-two".