121120242020135 has 16 divisors (see below), whose sum is σ = 148389436634880. Its totient is φ = 94880342442240.

The previous prime is 121120242020119. The next prime is 121120242020147. The reversal of 121120242020135 is 531020242021121.

It is not a de Polignac number, because 121120242020135 - 2⁴ = 121120242020119 is a prime.

It is a super-3 number, since 3×121120242020135³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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, 890325590 + ... + 890461619.

It is an arithmetic number, because the mean of its divisors is an integer number (9274339789680).

Almost surely, 2^{121120242020135} is an apocalyptic number.

121120242020135 is a deficient number, since it is larger than the sum of its proper divisors (27269194614745).

121120242020135 is a wasteful number, since it uses less digits than its factorization.

121120242020135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780787498.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 121120242020135 its reverse (531020242021121), we get a palindrome (652140484041256).

The spelling of 121120242020135 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred forty-two million, twenty thousand, one hundred thirty-five".