121120253 has 2 divisors, whose sum is σ = 121120254. Its totient is φ = 121120252.

The previous prime is 121120229. The next prime is 121120261. The reversal of 121120253 is 352021121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102475129 + 18645124 = 10123^2 + 4318^2 .

It is a cyclic number.

It is not a de Polignac number, because 121120253 - 2¹² = 121116157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121170253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560126 + 60560127.

It is an arithmetic number, because the mean of its divisors is an integer number (60560127).

Almost surely, 2^121120253 is an apocalyptic number.

It is an amenable number.

121120253 is a deficient number, since it is larger than the sum of its proper divisors (1).

121120253 is an equidigital number, since it uses as much as digits as its factorization.

121120253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 121120253 is about 11005.4646880538. The cubic root of 121120253 is about 494.7725418250.

Adding to 121120253 its reverse (352021121), we get a palindrome (473141374).

The spelling of 121120253 in words is "one hundred twenty-one million, one hundred twenty thousand, two hundred fifty-three".