30233120220 has 72 divisors (see below), whose sum is σ = 92737597680. Its totient is φ = 7971575040.

The previous prime is 30233120191. The next prime is 30233120287. The reversal of 30233120220 is 2202133203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30233120193 and 30233120202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 927586 + ... + 959625.

It is an arithmetic number, because the mean of its divisors is an integer number (1288022190).

Almost surely, 2^30233120220 is an apocalyptic number.

30233120220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30233120220 is an abundant number, since it is smaller than the sum of its proper divisors (62504477460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30233120220 is a wasteful number, since it uses less digits than its factorization.

30233120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887315 (or 1887310 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30233120220 its reverse (2202133203), we get a palindrome (32435253423).

The spelling of 30233120220 in words is "thirty billion, two hundred thirty-three million, one hundred twenty thousand, two hundred twenty".