30431420331123 has 64 divisors (see below), whose sum is σ = 47909899304960. Its totient is φ = 16821181052928.

The previous prime is 30431420331121. The next prime is 30431420331139. The reversal of 30431420331123 is 32113302413403.

It is not a de Polignac number, because 30431420331123 - 2¹ = 30431420331121 is a prime.

It is a super-2 number, since 2×30431420331123² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30431420331121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38472708 + ... + 39255726.

It is an arithmetic number, because the mean of its divisors is an integer number (748592176640).

Almost surely, 2^{30431420331123} is an apocalyptic number.

30431420331123 is a deficient number, since it is larger than the sum of its proper divisors (17478478973837).

30431420331123 is a wasteful number, since it uses less digits than its factorization.

30431420331123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783488.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 30431420331123 its reverse (32113302413403), we get a palindrome (62544722744526).

The spelling of 30431420331123 in words is "thirty trillion, four hundred thirty-one billion, four hundred twenty million, three hundred thirty-one thousand, one hundred twenty-three".