30212020031 has 8 divisors (see below), whose sum is σ = 30922048080. Its totient is φ = 29502329472.

The previous prime is 30212019983. The next prime is 30212020073. The reversal of 30212020031 is 13002021203.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30212020031 - 2³⁰ = 29138278207 is a prime.

It is a super-2 number, since 2×30212020031² (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 = 30212019988 and 30212020015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212020081) 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, 101525 + ... + 265953.

It is an arithmetic number, because the mean of its divisors is an integer number (3865256010).

Almost surely, 2^30212020031 is an apocalyptic number.

30212020031 is a deficient number, since it is larger than the sum of its proper divisors (710028049).

30212020031 is a wasteful number, since it uses less digits than its factorization.

30212020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168745.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30212020031 its reverse (13002021203), we get a palindrome (43214041234).

The spelling of 30212020031 in words is "thirty billion, two hundred twelve million, twenty thousand, thirty-one".