121153033 has 4 divisors (see below), whose sum is σ = 128279700. Its totient is φ = 114026368.

The previous prime is 121153009. The next prime is 121153037. The reversal of 121153033 is 330351121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89927289 + 31225744 = 9483^2 + 5588^2 .

It is a cyclic number.

It is not a de Polignac number, because 121153033 - 2²⁵ = 87598601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121153033.

It is not an unprimeable number, because it can be changed into a prime (121153037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3563308 + ... + 3563341.

It is an arithmetic number, because the mean of its divisors is an integer number (32069925).

Almost surely, 2^121153033 is an apocalyptic number.

It is an amenable number.

121153033 is a deficient number, since it is larger than the sum of its proper divisors (7126667).

121153033 is an equidigital number, since it uses as much as digits as its factorization.

121153033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7126666.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 121153033 is about 11006.9538474548. The cubic root of 121153033 is about 494.8171728992.

The spelling of 121153033 in words is "one hundred twenty-one million, one hundred fifty-three thousand, thirty-three".