30220312031 has 16 divisors (see below), whose sum is σ = 37203700800. Its totient is φ = 23904488448.

The previous prime is 30220312013. The next prime is 30220312043. The reversal of 30220312031 is 13021302203.

It is a cyclic number.

It is not a de Polignac number, because 30220312031 - 2¹⁸ = 30220049887 is a prime.

It is a super-2 number, since 2×30220312031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220312081) 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, 335525 + ... + 415953.

It is an arithmetic number, because the mean of its divisors is an integer number (2325231300).

Almost surely, 2^30220312031 is an apocalyptic number.

30220312031 is a deficient number, since it is larger than the sum of its proper divisors (6983388769).

30220312031 is a wasteful number, since it uses less digits than its factorization.

30220312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84578.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30220312031 its reverse (13021302203), we get a palindrome (43241614234).

The spelling of 30220312031 in words is "thirty billion, two hundred twenty million, three hundred twelve thousand, thirty-one".