120153256503 has 16 divisors (see below), whose sum is σ = 184903458816. Its totient is φ = 67979210400.

The previous prime is 120153256501. The next prime is 120153256519. The reversal of 120153256503 is 305652351021.

It is a happy number.

It is not a de Polignac number, because 120153256503 - 2¹ = 120153256501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120153256501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28322551 + ... + 28326792.

It is an arithmetic number, because the mean of its divisors is an integer number (11556466176).

Almost surely, 2^120153256503 is an apocalyptic number.

120153256503 is a deficient number, since it is larger than the sum of its proper divisors (64750202313).

120153256503 is a wasteful number, since it uses less digits than its factorization.

120153256503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56649454.

The product of its (nonzero) digits is 27000, while the sum is 33.

The spelling of 120153256503 in words is "one hundred twenty billion, one hundred fifty-three million, two hundred fifty-six thousand, five hundred three".