31331103101 has 8 divisors (see below), whose sum is σ = 32153906304. Its totient is φ = 30518273520.

The previous prime is 31331103091. The next prime is 31331103103. The reversal of 31331103101 is 10130113313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31331103101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31331103101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31331103103) 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, 2487041 + ... + 2499606.

It is an arithmetic number, because the mean of its divisors is an integer number (4019238288).

Almost surely, 2^31331103101 is an apocalyptic number.

It is an amenable number.

31331103101 is a deficient number, since it is larger than the sum of its proper divisors (822803203).

31331103101 is a wasteful number, since it uses less digits than its factorization.

31331103101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4986811.

The product of its (nonzero) digits is 81, while the sum is 17.

Adding to 31331103101 its reverse (10130113313), we get a palindrome (41461216414).

The spelling of 31331103101 in words is "thirty-one billion, three hundred thirty-one million, one hundred three thousand, one hundred one".