30431420331 has 16 divisors (see below), whose sum is σ = 43700485920. Its totient is φ = 18725276160.

The previous prime is 30431420321. The next prime is 30431420339. The reversal of 30431420331 is 13302413403.

It is not a de Polignac number, because 30431420331 - 2⁷ = 30431420203 is a prime.

It is a super-2 number, since 2×30431420331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30431420339) 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, 477361 + ... + 537341.

It is an arithmetic number, because the mean of its divisors is an integer number (2731280370).

Almost surely, 2^30431420331 is an apocalyptic number.

30431420331 is a deficient number, since it is larger than the sum of its proper divisors (13269065589).

30431420331 is a wasteful number, since it uses less digits than its factorization.

30431420331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73006.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 30431420331 its reverse (13302413403), we get a palindrome (43733833734).

The spelling of 30431420331 in words is "thirty billion, four hundred thirty-one million, four hundred twenty thousand, three hundred thirty-one".