31120121212233 has 8 divisors (see below), whose sum is σ = 41504509962048. Its totient is φ = 20741239968624.

The previous prime is 31120121212231. The next prime is 31120121212247. The reversal of 31120121212233 is 33221212102113.

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

It is not a de Polignac number, because 31120121212233 - 2¹ = 31120121212231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31120121212231) 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, 1376863366 + ... + 1376885967.

It is an arithmetic number, because the mean of its divisors is an integer number (5188063745256).

Almost surely, 2^{31120121212233} is an apocalyptic number.

It is an amenable number.

31120121212233 is a deficient number, since it is larger than the sum of its proper divisors (10384388749815).

31120121212233 is a wasteful number, since it uses less digits than its factorization.

31120121212233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753753103.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 31120121212233 its reverse (33221212102113), we get a palindrome (64341333314346).

The spelling of 31120121212233 in words is "thirty-one trillion, one hundred twenty billion, one hundred twenty-one million, two hundred twelve thousand, two hundred thirty-three".