121404552235 has 4 divisors (see below), whose sum is σ = 145685462688. Its totient is φ = 97123641784.

The previous prime is 121404552167. The next prime is 121404552257. The reversal of 121404552235 is 532255404121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121404552235 - 2¹¹ = 121404550187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121404552235.

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, 12140455219 + ... + 12140455228.

It is an arithmetic number, because the mean of its divisors is an integer number (36421365672).

Almost surely, 2^121404552235 is an apocalyptic number.

121404552235 is a deficient number, since it is larger than the sum of its proper divisors (24280910453).

121404552235 is an equidigital number, since it uses as much as digits as its factorization.

121404552235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24280910452.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 121404552235 its reverse (532255404121), we get a palindrome (653659956356).

The spelling of 121404552235 in words is "one hundred twenty-one billion, four hundred four million, five hundred fifty-two thousand, two hundred thirty-five".