30120231031 has 8 divisors (see below), whose sum is σ = 32876112528. Its totient is φ = 27367296000.

The previous prime is 30120230999. The next prime is 30120231041. The reversal of 30120231031 is 13013202103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30120231031 - 2⁵ = 30120230999 is a prime.

It is a super-2 number, since 2×30120231031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30120230996 and 30120231014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120231041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715210 + ... + 756151.

It is an arithmetic number, because the mean of its divisors is an integer number (4109514066).

Almost surely, 2^30120231031 is an apocalyptic number.

30120231031 is a deficient number, since it is larger than the sum of its proper divisors (2755881497).

30120231031 is a wasteful number, since it uses less digits than its factorization.

30120231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473233.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30120231031 its reverse (13013202103), we get a palindrome (43133433134).

It can be divided in two parts, 301202 and 31031, that added together give a palindrome (332233).

The spelling of 30120231031 in words is "thirty billion, one hundred twenty million, two hundred thirty-one thousand, thirty-one".