30003231231020 has 96 divisors (see below), whose sum is σ = 65432062180800. Its totient is φ = 11542556748800.

The previous prime is 30003231230969. The next prime is 30003231231089. The reversal of 30003231231020 is 2013213230003.

It is a super-2 number, since 2×30003231231020² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30003231230983 and 30003231231001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1405885550 + ... + 1405906890.

It is an arithmetic number, because the mean of its divisors is an integer number (681583981050).

Almost surely, 2^{30003231231020} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30003231231020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32716031090400).

30003231231020 is an abundant number, since it is smaller than the sum of its proper divisors (35428830949780).

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

30003231231020 is a wasteful number, since it uses less digits than its factorization.

30003231231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30659 (or 30657 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30003231231020 its reverse (2013213230003), we get a palindrome (32016444461023).

The spelling of 30003231231020 in words is "thirty trillion, three billion, two hundred thirty-one million, two hundred thirty-one thousand, twenty".