121133237 has 2 divisors, whose sum is σ = 121133238. Its totient is φ = 121133236.

The previous prime is 121133231. The next prime is 121133263. The reversal of 121133237 is 732331121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120978001 + 155236 = 10999^2 + 394^2 .

It is a cyclic number.

It is not a de Polignac number, because 121133237 - 2¹⁰ = 121132213 is a prime.

It is a super-2 number, since 2×121133237² = 29346522212196338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121133231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60566618 + 60566619.

It is an arithmetic number, because the mean of its divisors is an integer number (60566619).

Almost surely, 2^121133237 is an apocalyptic number.

It is an amenable number.

121133237 is a deficient number, since it is larger than the sum of its proper divisors (1).

121133237 is an equidigital number, since it uses as much as digits as its factorization.

121133237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 23.

The square root of 121133237 is about 11006.0545610132. The cubic root of 121133237 is about 494.7902209413.

Adding to 121133237 its reverse (732331121), we get a palindrome (853464358).

The spelling of 121133237 in words is "one hundred twenty-one million, one hundred thirty-three thousand, two hundred thirty-seven".