31252280099 has 8 divisors (see below), whose sum is σ = 32355182160. Its totient is φ = 30151060576.

The previous prime is 31252280083. The next prime is 31252280141. The reversal of 31252280099 is 99008225213.

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

It is not a de Polignac number, because 31252280099 - 2⁴ = 31252280083 is a prime.

It is a super-2 number, since 2×31252280099² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31252280039) 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, 382772 + ... + 457185.

It is an arithmetic number, because the mean of its divisors is an integer number (4044397770).

Almost surely, 2^31252280099 is an apocalyptic number.

31252280099 is a deficient number, since it is larger than the sum of its proper divisors (1102902061).

31252280099 is a wasteful number, since it uses less digits than its factorization.

31252280099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841269.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 31252280099 in words is "thirty-one billion, two hundred fifty-two million, two hundred eighty thousand, ninety-nine".