121203402 has 16 divisors (see below), whose sum is σ = 246025632. Its totient is φ = 39798000.

The previous prime is 121203389. The next prime is 121203403. The reversal of 121203402 is 204302121.

It is not an unprimeable number, because it can be changed into a prime (121203403) 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, 150349 + ... + 151152.

It is an arithmetic number, because the mean of its divisors is an integer number (15376602).

Almost surely, 2^121203402 is an apocalyptic number.

121203402 is an abundant number, since it is smaller than the sum of its proper divisors (124822230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121203402 is a wasteful number, since it uses less digits than its factorization.

121203402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301573.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 121203402 is about 11009.2416632573. The cubic root of 121203402 is about 494.8857363032.

Adding to 121203402 its reverse (204302121), we get a palindrome (325505523).

It can be divided in two parts, 121 and 203402, that multiplied together give a palindrome (24611642).

The spelling of 121203402 in words is "one hundred twenty-one million, two hundred three thousand, four hundred two".