121200230112031 has 24 divisors (see below), whose sum is σ = 141439206543360. Its totient is φ = 103553895865392.

The previous prime is 121200230111977. The next prime is 121200230112109. The reversal of 121200230112031 is 130211032002121.

It is not a de Polignac number, because 121200230112031 - 2¹¹ = 121200230109983 is a prime.

It is a super-2 number, since 2×121200230112031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121200230112131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20790766 + ... + 25974148.

It is an arithmetic number, because the mean of its divisors is an integer number (5893300272640).

Almost surely, 2^{121200230112031} is an apocalyptic number.

121200230112031 is a deficient number, since it is larger than the sum of its proper divisors (20238976431329).

121200230112031 is a wasteful number, since it uses less digits than its factorization.

121200230112031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5184923 (or 5184916 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121200230112031 its reverse (130211032002121), we get a palindrome (251411262114152).

The spelling of 121200230112031 in words is "one hundred twenty-one trillion, two hundred billion, two hundred thirty million, one hundred twelve thousand, thirty-one".