121120103021 has 2 divisors, whose sum is σ = 121120103022. Its totient is φ = 121120103020.

The previous prime is 121120103017. The next prime is 121120103087. The reversal of 121120103021 is 120301021121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62065756900 + 59054346121 = 249130^2 + 243011^2 .

It is a cyclic number.

It is not a de Polignac number, because 121120103021 - 2² = 121120103017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121120102987 and 121120103005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121120102021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560051510 + 60560051511.

It is an arithmetic number, because the mean of its divisors is an integer number (60560051511).

Almost surely, 2^121120103021 is an apocalyptic number.

It is an amenable number.

121120103021 is a deficient number, since it is larger than the sum of its proper divisors (1).

121120103021 is an equidigital number, since it uses as much as digits as its factorization.

121120103021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121120103021 its reverse (120301021121), we get a palindrome (241421124142).

The spelling of 121120103021 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred three thousand, twenty-one".