121970563 has 32 divisors (see below), whose sum is σ = 153280512. Its totient is φ = 95347200.

The previous prime is 121970551. The next prime is 121970567. The reversal of 121970563 is 365079121.

It is not a de Polignac number, because 121970563 - 2¹⁷ = 121839491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121970567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318270 + ... + 318652.

It is an arithmetic number, because the mean of its divisors is an integer number (4790016).

Almost surely, 2^121970563 is an apocalyptic number.

121970563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121970563 is a deficient number, since it is larger than the sum of its proper divisors (31309949).

121970563 is a wasteful number, since it uses less digits than its factorization.

121970563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 121970563 is about 11044.0283864177. The cubic root of 121970563 is about 495.9276730191.

The spelling of 121970563 in words is "one hundred twenty-one million, nine hundred seventy thousand, five hundred sixty-three".