121402440235 has 16 divisors (see below), whose sum is σ = 146817776160. Its totient is φ = 96365617920.

The previous prime is 121402440199. The next prime is 121402440301. The reversal of 121402440235 is 532044204121.

It is not a de Polignac number, because 121402440235 - 2²³ = 121394051627 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6389209 + ... + 6408181.

It is an arithmetic number, because the mean of its divisors is an integer number (9176111010).

Almost surely, 2^121402440235 is an apocalyptic number.

121402440235 is a deficient number, since it is larger than the sum of its proper divisors (25415335925).

121402440235 is a wasteful number, since it uses less digits than its factorization.

121402440235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28878.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 121402440235 its reverse (532044204121), we get a palindrome (653446644356).

The spelling of 121402440235 in words is "one hundred twenty-one billion, four hundred two million, four hundred forty thousand, two hundred thirty-five".