30140423431 has 2 divisors, whose sum is σ = 30140423432. Its totient is φ = 30140423430.

The previous prime is 30140423419. The next prime is 30140423441. The reversal of 30140423431 is 13432404103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30140423431 - 2¹⁵ = 30140390663 is a prime.

It is a super-2 number, since 2×30140423431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30140423396 and 30140423405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30140423441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15070211715 + 15070211716.

It is an arithmetic number, because the mean of its divisors is an integer number (15070211716).

Almost surely, 2^30140423431 is an apocalyptic number.

30140423431 is a deficient number, since it is larger than the sum of its proper divisors (1).

30140423431 is an equidigital number, since it uses as much as digits as its factorization.

30140423431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 30140423431 its reverse (13432404103), we get a palindrome (43572827534).

The spelling of 30140423431 in words is "thirty billion, one hundred forty million, four hundred twenty-three thousand, four hundred thirty-one".