1230201020 has 24 divisors (see below), whose sum is σ = 2632168224. Its totient is φ = 482795456.

The previous prime is 1230201019. The next prime is 1230201029. The reversal of 1230201020 is 201020321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1230200992 and 1230201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230201029) 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, 579224 + ... + 581343.

It is an arithmetic number, because the mean of its divisors is an integer number (109673676).

Almost surely, 2^1230201020 is an apocalyptic number.

1230201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230201020 is an abundant number, since it is smaller than the sum of its proper divisors (1401967204).

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

1230201020 is a wasteful number, since it uses less digits than its factorization.

1230201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160629 (or 1160627 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1230201020 is about 35074.2215879412. The cubic root of 1230201020 is about 1071.4996353796.

Adding to 1230201020 its reverse (201020321), we get a palindrome (1431221341).

The spelling of 1230201020 in words is "one billion, two hundred thirty million, two hundred one thousand, twenty".