30211023132020 has 24 divisors (see below), whose sum is σ = 63447252657768. Its totient is φ = 12083627523200.

The previous prime is 30211023132019. The next prime is 30211023132023. The reversal of 30211023132020 is 2023132011203.

It can be written as a sum of positive squares in 4 ways, for example, as 4344481572964 + 25866541559056 = 2084342^2 + 5085916^2 .

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 = 30211023131983 and 30211023132001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211023132023) 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, 48541151 + ... + 49159590.

It is an arithmetic number, because the mean of its divisors is an integer number (2643635527407).

Almost surely, 2^{30211023132020} is an apocalyptic number.

It is an amenable number.

30211023132020 is an abundant number, since it is smaller than the sum of its proper divisors (33236229525748).

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

30211023132020 is a wasteful number, since it uses less digits than its factorization.

30211023132020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97716211 (or 97716209 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30211023132020 its reverse (2023132011203), we get a palindrome (32234155143223).

The spelling of 30211023132020 in words is "thirty trillion, two hundred eleven billion, twenty-three million, one hundred thirty-two thousand, twenty".