121321402 has 8 divisors (see below), whose sum is σ = 183784212. Its totient is φ = 60060000.

The previous prime is 121321397. The next prime is 121321423. The reversal of 121321402 is 204123121.

It can be written as a sum of positive squares in 2 ways, for example, as 90839961 + 30481441 = 9531^2 + 5521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300099 + ... + 300502.

Almost surely, 2^121321402 is an apocalyptic number.

121321402 is a deficient number, since it is larger than the sum of its proper divisors (62462810).

121321402 is a wasteful number, since it uses less digits than its factorization.

121321402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600704.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121321402 is about 11014.5994933997. The cubic root of 121321402 is about 495.0462861863.

Adding to 121321402 its reverse (204123121), we get a palindrome (325444523).

The spelling of 121321402 in words is "one hundred twenty-one million, three hundred twenty-one thousand, four hundred two".