9900101031 has 16 divisors (see below), whose sum is σ = 13899450240. Its totient is φ = 6250638240.

The previous prime is 9900101021. The next prime is 9900101047. The reversal of 9900101031 is 1301010099.

It is not a de Polignac number, because 9900101031 - 2¹⁴ = 9900084647 is a prime.

It is a super-2 number, since 2×9900101031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9900100992 and 9900101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9900101021) 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, 156636 + ... + 210558.

It is an arithmetic number, because the mean of its divisors is an integer number (868715640).

Almost surely, 2^9900101031 is an apocalyptic number.

9900101031 is a deficient number, since it is larger than the sum of its proper divisors (3999349209).

9900101031 is a wasteful number, since it uses less digits than its factorization.

9900101031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57166.

The product of its (nonzero) digits is 243, while the sum is 24.

The square root of 9900101031 is about 99499.2514092443. The cubic root of 9900101031 is about 2147.2364732604.

The spelling of 9900101031 in words is "nine billion, nine hundred million, one hundred one thousand, thirty-one".