30123002031 has 16 divisors (see below), whose sum is σ = 40357853184. Its totient is φ = 19985288544.

The previous prime is 30123002029. The next prime is 30123002087. The reversal of 30123002031 is 13020032103.

It is not a de Polignac number, because 30123002031 - 2¹ = 30123002029 is a prime.

It is a super-2 number, since 2×30123002031² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30123002031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123042031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551166 + ... + 603348.

It is an arithmetic number, because the mean of its divisors is an integer number (2522365824).

Almost surely, 2^30123002031 is an apocalyptic number.

30123002031 is a deficient number, since it is larger than the sum of its proper divisors (10234851153).

30123002031 is a wasteful number, since it uses less digits than its factorization.

30123002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53110.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30123002031 its reverse (13020032103), we get a palindrome (43143034134).

The spelling of 30123002031 in words is "thirty billion, one hundred twenty-three million, two thousand, thirty-one".