30031451023 has 4 divisors (see below), whose sum is σ = 34321658320. Its totient is φ = 25741243728.

The previous prime is 30031450979. The next prime is 30031451029. The reversal of 30031451023 is 32015413003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30031451023 - 2¹⁷ = 30031319951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30031450985 and 30031451003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031451029) 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, 2145103638 + ... + 2145103651.

It is an arithmetic number, because the mean of its divisors is an integer number (8580414580).

Almost surely, 2^30031451023 is an apocalyptic number.

30031451023 is a deficient number, since it is larger than the sum of its proper divisors (4290207297).

30031451023 is an equidigital number, since it uses as much as digits as its factorization.

30031451023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4290207296.

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 30031451023 its reverse (32015413003), we get a palindrome (62046864026).

The spelling of 30031451023 in words is "thirty billion, thirty-one million, four hundred fifty-one thousand, twenty-three".