121023200331 has 16 divisors (see below), whose sum is σ = 195593051520. Its totient is φ = 73347393960.

The previous prime is 121023200327. The next prime is 121023200377. The reversal of 121023200331 is 133002320121.

121023200331 is a `hidden beast` number, since 1 + 2 + 10 + 2 + 320 + 0 + 331 = 666.

It is not a de Polignac number, because 121023200331 - 2² = 121023200327 is a prime.

It is a super-2 number, since 2×121023200331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121023200381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203742465 + ... + 203743058.

It is an arithmetic number, because the mean of its divisors is an integer number (12224565720).

Almost surely, 2^121023200331 is an apocalyptic number.

121023200331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121023200331 is a deficient number, since it is larger than the sum of its proper divisors (74569851189).

121023200331 is a wasteful number, since it uses less digits than its factorization.

121023200331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407485543 (or 407485537 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121023200331 its reverse (133002320121), we get a palindrome (254025520452).

The spelling of 121023200331 in words is "one hundred twenty-one billion, twenty-three million, two hundred thousand, three hundred thirty-one".