120940121453 has 4 divisors (see below), whose sum is σ = 122989954080. Its totient is φ = 118890288828.

The previous prime is 120940121443. The next prime is 120940121459. The reversal of 120940121453 is 354121049021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 354121049021 = 263 ⋅1346467867.

It is a cyclic number.

It is not a de Polignac number, because 120940121453 - 2¹⁰ = 120940120429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120940121459) 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, 1024916225 + ... + 1024916342.

It is an arithmetic number, because the mean of its divisors is an integer number (30747488520).

Almost surely, 2^120940121453 is an apocalyptic number.

It is an amenable number.

120940121453 is a deficient number, since it is larger than the sum of its proper divisors (2049832627).

120940121453 is an equidigital number, since it uses as much as digits as its factorization.

120940121453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049832626.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 120940121453 in words is "one hundred twenty billion, nine hundred forty million, one hundred twenty-one thousand, four hundred fifty-three".