31130220101 has 32 divisors (see below), whose sum is σ = 33386411520. Its totient is φ = 28986048000.

The previous prime is 31130220071. The next prime is 31130220127. The reversal of 31130220101 is 10102203113.

It is not a de Polignac number, because 31130220101 - 2¹⁴ = 31130203717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31130220301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14065871 + ... + 14068083.

It is an arithmetic number, because the mean of its divisors is an integer number (1043325360).

Almost surely, 2^31130220101 is an apocalyptic number.

It is an amenable number.

31130220101 is a deficient number, since it is larger than the sum of its proper divisors (2256191419).

31130220101 is a wasteful number, since it uses less digits than its factorization.

31130220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31130220101 its reverse (10102203113), we get a palindrome (41232423214).

The spelling of 31130220101 in words is "thirty-one billion, one hundred thirty million, two hundred twenty thousand, one hundred one".