121100011051 has 2 divisors, whose sum is σ = 121100011052. Its totient is φ = 121100011050.

The previous prime is 121100010979. The next prime is 121100011069. The reversal of 121100011051 is 150110001121.

It is a strong prime.

It is an emirp because it is prime and its reverse (150110001121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121100011051 - 2²¹ = 121097913899 is a prime.

It is not a weakly prime, because it can be changed into another prime (121100011651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550005525 + 60550005526.

It is an arithmetic number, because the mean of its divisors is an integer number (60550005526).

Almost surely, 2^121100011051 is an apocalyptic number.

121100011051 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100011051 is an equidigital number, since it uses as much as digits as its factorization.

121100011051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10, while the sum is 13.

Adding to 121100011051 its reverse (150110001121), we get a palindrome (271210012172).

The spelling of 121100011051 in words is "one hundred twenty-one billion, one hundred million, eleven thousand, fifty-one".