30201231020 has 24 divisors (see below), whose sum is σ = 63741300000. Its totient is φ = 12019784832.

The previous prime is 30201231013. The next prime is 30201231037. The reversal of 30201231020 is 2013210203.

It is a happy number.

It is a super-2 number, since 2×30201231020² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30201230986 and 30201231004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3790145 + ... + 3798104.

It is an arithmetic number, because the mean of its divisors is an integer number (2655887500).

Almost surely, 2^30201231020 is an apocalyptic number.

It is an amenable number.

30201231020 is an abundant number, since it is smaller than the sum of its proper divisors (33540068980).

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

30201231020 is a wasteful number, since it uses less digits than its factorization.

30201231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7588457 (or 7588455 counting only the distinct ones).

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

Adding to 30201231020 its reverse (2013210203), we get a palindrome (32214441223).

The spelling of 30201231020 in words is "thirty billion, two hundred one million, two hundred thirty-one thousand, twenty".