31030121101 has 8 divisors (see below), whose sum is σ = 35466341184. Its totient is φ = 26594737440.

The previous prime is 31030121081. The next prime is 31030121107. The reversal of 31030121101 is 10112103013.

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 31030121101 - 2²³ = 31021732493 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 (31030121107) 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, 127480 + ... + 279841.

It is an arithmetic number, because the mean of its divisors is an integer number (4433292648).

Almost surely, 2^31030121101 is an apocalyptic number.

It is an amenable number.

31030121101 is a deficient number, since it is larger than the sum of its proper divisors (4436220083).

31030121101 is a wasteful number, since it uses less digits than its factorization.

31030121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418211.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 31030121101 its reverse (10112103013), we get a palindrome (41142224114).

The spelling of 31030121101 in words is "thirty-one billion, thirty million, one hundred twenty-one thousand, one hundred one".