31112000121 has 8 divisors (see below), whose sum is σ = 41781103840. Its totient is φ = 20592114912.

The previous prime is 31112000119. The next prime is 31112000131. The reversal of 31112000121 is 12100021113.

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

It is not a de Polignac number, because 31112000121 - 2¹ = 31112000119 is a prime.

It is a super-3 number, since 3×31112000121³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31112000097 and 31112000106.

It is not an unprimeable number, because it can be changed into a prime (31112000131) 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, 37304140 + ... + 37304973.

It is an arithmetic number, because the mean of its divisors is an integer number (5222637980).

Almost surely, 2^31112000121 is an apocalyptic number.

It is an amenable number.

31112000121 is a deficient number, since it is larger than the sum of its proper divisors (10669103719).

31112000121 is a wasteful number, since it uses less digits than its factorization.

31112000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74609255.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 31112000121 its reverse (12100021113), we get a palindrome (43212021234).

The spelling of 31112000121 in words is "thirty-one billion, one hundred twelve million, one hundred twenty-one", and thus it is an aban number.