12031021113 has 8 divisors (see below), whose sum is σ = 16594512000. Its totient is φ = 7744105488.

The previous prime is 12031021109. The next prime is 12031021117. The reversal of 12031021113 is 31112013021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12031021109) and next prime (12031021117).

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

It is not a de Polignac number, because 12031021113 - 2² = 12031021109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12031021092 and 12031021101.

It is not an unprimeable number, because it can be changed into a prime (12031021117) 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, 69143713 + ... + 69143886.

It is an arithmetic number, because the mean of its divisors is an integer number (2074314000).

Almost surely, 2^12031021113 is an apocalyptic number.

It is an amenable number.

12031021113 is a deficient number, since it is larger than the sum of its proper divisors (4563490887).

12031021113 is a wasteful number, since it uses less digits than its factorization.

12031021113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138287631.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12031021113 its reverse (31112013021), we get a palindrome (43143034134).

The spelling of 12031021113 in words is "twelve billion, thirty-one million, twenty-one thousand, one hundred thirteen".