30513423403 has 32 divisors (see below), whose sum is σ = 33615338688. Its totient is φ = 27578880000.

The previous prime is 30513423389. The next prime is 30513423427. The reversal of 30513423403 is 30432431503.

It is a cyclic number.

It is not a de Polignac number, because 30513423403 - 2¹⁷ = 30513292331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30513453403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29032228 + ... + 29033278.

It is an arithmetic number, because the mean of its divisors is an integer number (1050479334).

Almost surely, 2^30513423403 is an apocalyptic number.

30513423403 is a deficient number, since it is larger than the sum of its proper divisors (3101915285).

30513423403 is a wasteful number, since it uses less digits than its factorization.

30513423403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 30513423403 its reverse (30432431503), we get a palindrome (60945854906).

The spelling of 30513423403 in words is "thirty billion, five hundred thirteen million, four hundred twenty-three thousand, four hundred three".