121333011051 has 32 divisors (see below), whose sum is σ = 190781568000. Its totient is φ = 68554073280.

The previous prime is 121333011029. The next prime is 121333011071. The reversal of 121333011051 is 150110333121.

It is not a de Polignac number, because 121333011051 - 2¹³ = 121333002859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (121333011011) 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, 570855 + ... + 754016.

It is an arithmetic number, because the mean of its divisors is an integer number (5961924000).

Almost surely, 2^121333011051 is an apocalyptic number.

121333011051 is a deficient number, since it is larger than the sum of its proper divisors (69448556949).

121333011051 is an equidigital number, since it uses as much as digits as its factorization.

121333011051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324984 (or 1324970 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

Adding to 121333011051 its reverse (150110333121), we get a palindrome (271443344172).

The spelling of 121333011051 in words is "one hundred twenty-one billion, three hundred thirty-three million, eleven thousand, fifty-one".