121002947 has 12 divisors (see below), whose sum is σ = 131489904. Its totient is φ = 110692320.

The previous prime is 121002911. The next prime is 121003007. The reversal of 121002947 is 749200121.

It is a de Polignac number, because none of the positive numbers 2^k-121002947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121002047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388922 + ... + 389232.

It is an arithmetic number, because the mean of its divisors is an integer number (10957492).

Almost surely, 2^121002947 is an apocalyptic number.

121002947 is a deficient number, since it is larger than the sum of its proper divisors (10486957).

121002947 is an equidigital number, since it uses as much as digits as its factorization.

121002947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 121002947 is about 11000.1339537298. The cubic root of 121002947 is about 494.6127597522.

The spelling of 121002947 in words is "one hundred twenty-one million, two thousand, nine hundred forty-seven".