121403135 has 32 divisors (see below), whose sum is σ = 175824000. Its totient is φ = 80344320.

The previous prime is 121403119. The next prime is 121403153. The reversal of 121403135 is 531304121.

It is not a de Polignac number, because 121403135 - 2⁴ = 121403119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48515 + ... + 50955.

It is an arithmetic number, because the mean of its divisors is an integer number (5494500).

Almost surely, 2^121403135 is an apocalyptic number.

121403135 is a deficient number, since it is larger than the sum of its proper divisors (54420865).

121403135 is an equidigital number, since it uses as much as digits as its factorization.

121403135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496 (or 2482 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 121403135 is about 11018.3090807982. The cubic root of 121403135 is about 495.1574304545.

Adding to 121403135 its reverse (531304121), we get a palindrome (652707256).

The spelling of 121403135 in words is "one hundred twenty-one million, four hundred three thousand, one hundred thirty-five".