31132120101 has 16 divisors (see below), whose sum is σ = 41695653888. Its totient is φ = 20661750000.

The previous prime is 31132120081. The next prime is 31132120121. The reversal of 31132120101 is 10102123113.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31132120081) and next prime (31132120121).

It is not a de Polignac number, because 31132120101 - 2¹¹ = 31132118053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31132120121) 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, 1685820 + ... + 1704186.

It is an arithmetic number, because the mean of its divisors is an integer number (2605978368).

Almost surely, 2^31132120101 is an apocalyptic number.

It is an amenable number.

31132120101 is a deficient number, since it is larger than the sum of its proper divisors (10563533787).

31132120101 is a wasteful number, since it uses less digits than its factorization.

31132120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20872.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 31132120101 its reverse (10102123113), we get a palindrome (41234243214).

The spelling of 31132120101 in words is "thirty-one billion, one hundred thirty-two million, one hundred twenty thousand, one hundred one".