1503430121053 has 4 divisors (see below), whose sum is σ = 1718205852640. Its totient is φ = 1288654389468.

The previous prime is 1503430121029. The next prime is 1503430121057. The reversal of 1503430121053 is 3501210343051.

It is a happy number.

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 1503430121053 - 2⁹ = 1503430120541 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 (1503430121057) 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, 107387865783 + ... + 107387865796.

It is an arithmetic number, because the mean of its divisors is an integer number (429551463160).

Almost surely, 2^{1503430121053} is an apocalyptic number.

It is an amenable number.

1503430121053 is a deficient number, since it is larger than the sum of its proper divisors (214775731587).

1503430121053 is an equidigital number, since it uses as much as digits as its factorization.

1503430121053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214775731586.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 1503430121053 in words is "one trillion, five hundred three billion, four hundred thirty million, one hundred twenty-one thousand, fifty-three".