121100233331 has 32 divisors (see below), whose sum is σ = 152813952000. Its totient is φ = 93220807680.

The previous prime is 121100233313. The next prime is 121100233349. The reversal of 121100233331 is 133332001121.

It is an interprime number because it is at equal distance from previous prime (121100233313) and next prime (121100233349).

It is not a de Polignac number, because 121100233331 - 2²² = 121096039027 is a prime.

It is a super-2 number, since 2×121100233331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121100233301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8373995 + ... + 8388443.

It is an arithmetic number, because the mean of its divisors is an integer number (4775436000).

Almost surely, 2^121100233331 is an apocalyptic number.

121100233331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121100233331 is a deficient number, since it is larger than the sum of its proper divisors (31713718669).

121100233331 is a wasteful number, since it uses less digits than its factorization.

121100233331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15779.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 121100233331 its reverse (133332001121), we get a palindrome (254432234452).

The spelling of 121100233331 in words is "one hundred twenty-one billion, one hundred million, two hundred thirty-three thousand, three hundred thirty-one".