99251531422131 has 16 divisors (see below), whose sum is σ = 144471937327488. Its totient is φ = 60108246019200.

The previous prime is 99251531422097. The next prime is 99251531422237. The reversal of 99251531422131 is 13122413515299.

It is a happy number.

It is not a de Polignac number, because 99251531422131 - 2⁶ = 99251531422067 is a prime.

It is a super-2 number, since 2×99251531422131² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99251531421131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1104886081 + ... + 1104975906.

It is an arithmetic number, because the mean of its divisors is an integer number (9029496082968).

Almost surely, 2^{99251531422131} is an apocalyptic number.

99251531422131 is a deficient number, since it is larger than the sum of its proper divisors (45220405905357).

99251531422131 is a wasteful number, since it uses less digits than its factorization.

99251531422131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209863362.

The product of its digits is 583200, while the sum is 48.

The spelling of 99251531422131 in words is "ninety-nine trillion, two hundred fifty-one billion, five hundred thirty-one million, four hundred twenty-two thousand, one hundred thirty-one".