121040402 has 16 divisors (see below), whose sum is σ = 209336832. Its totient is φ = 51414720.

The previous prime is 121040363. The next prime is 121040407. The reversal of 121040402 is 204040121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (121040407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36674 + ... + 39837.

It is an arithmetic number, because the mean of its divisors is an integer number (13083552).

Almost surely, 2^121040402 is an apocalyptic number.

121040402 is a deficient number, since it is larger than the sum of its proper divisors (88296430).

121040402 is a wasteful number, since it uses less digits than its factorization.

121040402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76633.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 121040402 is about 11001.8363012726. The cubic root of 121040402 is about 494.6637882884.

Adding to 121040402 its reverse (204040121), we get a palindrome (325080523).

The spelling of 121040402 in words is "one hundred twenty-one million, forty thousand, four hundred two".