121004354149 has 4 divisors (see below), whose sum is σ = 138290690464. Its totient is φ = 103718017836.

The previous prime is 121004354137. The next prime is 121004354221. The reversal of 121004354149 is 941453400121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121004354149 - 2⁵ = 121004354117 is a prime.

It is a super-2 number, since 2×121004354149² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121004154149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8643168147 + ... + 8643168160.

It is an arithmetic number, because the mean of its divisors is an integer number (34572672616).

Almost surely, 2^121004354149 is an apocalyptic number.

It is an amenable number.

121004354149 is a deficient number, since it is larger than the sum of its proper divisors (17286336315).

121004354149 is an equidigital number, since it uses as much as digits as its factorization.

121004354149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17286336314.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 121004354149 in words is "one hundred twenty-one billion, four million, three hundred fifty-four thousand, one hundred forty-nine".