121136402 has 16 divisors (see below), whose sum is σ = 185421312. Its totient is φ = 59339280.

The previous prime is 121136399. The next prime is 121136453. The reversal of 121136402 is 204631121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23228 + ... + 27960.

It is an arithmetic number, because the mean of its divisors is an integer number (11588832).

Almost surely, 2^121136402 is an apocalyptic number.

121136402 is a deficient number, since it is larger than the sum of its proper divisors (64284910).

121136402 is a wasteful number, since it uses less digits than its factorization.

121136402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 121136402 is about 11006.1983445693. The cubic root of 121136402 is about 494.7945302387.

Adding to 121136402 its reverse (204631121), we get a palindrome (325767523).

The spelling of 121136402 in words is "one hundred twenty-one million, one hundred thirty-six thousand, four hundred two".