121013053439 has 8 divisors (see below), whose sum is σ = 121385023728. Its totient is φ = 120641653440.

The previous prime is 121013053429. The next prime is 121013053547. The reversal of 121013053439 is 934350310121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121013053439 - 2¹⁶ = 121012987903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013053429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284429 + ... + 568265.

It is an arithmetic number, because the mean of its divisors is an integer number (15173127966).

Almost surely, 2^121013053439 is an apocalyptic number.

121013053439 is a deficient number, since it is larger than the sum of its proper divisors (371970289).

121013053439 is an equidigital number, since it uses as much as digits as its factorization.

121013053439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285145.

The product of its (nonzero) digits is 9720, while the sum is 32.

The spelling of 121013053439 in words is "one hundred twenty-one billion, thirteen million, fifty-three thousand, four hundred thirty-nine".