1030202100 has 108 divisors (see below), whose sum is σ = 3316491724. Its totient is φ = 267287040.

The previous prime is 1030202087. The next prime is 1030202111. The reversal of 1030202100 is 12020301.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 18198756 + 1012003344 = 4266^2 + 31812^2 .

It is a super-2 number, since 2×1030202100² = 2122632733688820000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17832 + ... + 48768.

Almost surely, 2^1030202100 is an apocalyptic number.

1030202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1030202100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1658245862).

1030202100 is an abundant number, since it is smaller than the sum of its proper divisors (2286289624).

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

1030202100 is a wasteful number, since it uses less digits than its factorization.

1030202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30994 (or 30984 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1030202100 is about 32096.7615188822. The cubic root of 1030202100 is about 1009.9676818728.

Adding to 1030202100 its reverse (12020301), we get a palindrome (1042222401).

The spelling of 1030202100 in words is "one billion, thirty million, two hundred two thousand, one hundred".