31132220101 has 8 divisors (see below), whose sum is σ = 32489933760. Its totient is φ = 29774851392.

The previous prime is 31132220069. The next prime is 31132220113. The reversal of 31132220101 is 10102223113.

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

It is a cyclic number.

It is not a de Polignac number, because 31132220101 - 2⁵ = 31132220069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31132226101) 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, 107485 + ... + 271693.

It is an arithmetic number, because the mean of its divisors is an integer number (4061241720).

Almost surely, 2^31132220101 is an apocalyptic number.

It is an amenable number.

31132220101 is a deficient number, since it is larger than the sum of its proper divisors (1357713659).

31132220101 is a wasteful number, since it uses less digits than its factorization.

31132220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172475.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31132220101 its reverse (10102223113), we get a palindrome (41234443214).

The spelling of 31132220101 in words is "thirty-one billion, one hundred thirty-two million, two hundred twenty thousand, one hundred one".