121052563 has 6 divisors (see below), whose sum is σ = 128592476. Its totient is φ = 113931552.

The previous prime is 121052557. The next prime is 121052579. The reversal of 121052563 is 365250121.

It is a de Polignac number, because none of the positive numbers 2^k-121052563 is a prime.

It is a super-4 number, since 4×121052563⁴ (a number of 33 digits) contains 4444 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121052513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 209145 + ... + 209722.

Almost surely, 2^121052563 is an apocalyptic number.

121052563 is a deficient number, since it is larger than the sum of its proper divisors (7539913).

121052563 is an equidigital number, since it uses as much as digits as its factorization.

121052563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418901 (or 418884 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 121052563 is about 11002.3889678560. The cubic root of 121052563 is about 494.6803541204.

The spelling of 121052563 in words is "one hundred twenty-one million, fifty-two thousand, five hundred sixty-three".