31120133201 has 4 divisors (see below), whose sum is σ = 31306481472. Its totient is φ = 30933784932.

The previous prime is 31120133183. The next prime is 31120133227. The reversal of 31120133201 is 10233102113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31120133201 - 2³⁴ = 13940264017 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 31120133201.

It is not an unprimeable number, because it can be changed into a prime (31120133701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93173885 + ... + 93174218.

It is an arithmetic number, because the mean of its divisors is an integer number (7826620368).

Almost surely, 2^31120133201 is an apocalyptic number.

It is an amenable number.

31120133201 is a deficient number, since it is larger than the sum of its proper divisors (186348271).

31120133201 is a wasteful number, since it uses less digits than its factorization.

31120133201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186348270.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31120133201 its reverse (10233102113), we get a palindrome (41353235314).

The spelling of 31120133201 in words is "thirty-one billion, one hundred twenty million, one hundred thirty-three thousand, two hundred one".