1230210100 has 144 divisors (see below), whose sum is σ = 3401032320. Its totient is φ = 376012800.

The previous prime is 1230210097. The next prime is 1230210143. The reversal of 1230210100 is 10120321.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223380 + ... + 228820.

It is an arithmetic number, because the mean of its divisors is an integer number (23618280).

Almost surely, 2^1230210100 is an apocalyptic number.

1230210100 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 1230210100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1700516160).

1230210100 is an abundant number, since it is smaller than the sum of its proper divisors (2170822220).

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

1230210100 is a wasteful number, since it uses less digits than its factorization.

1230210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5498 (or 5491 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1230210100 is about 35074.3510274959. The cubic root of 1230210100 is about 1071.5022715864.

Adding to 1230210100 its reverse (10120321), we get a palindrome (1240330421).

The spelling of 1230210100 in words is "one billion, two hundred thirty million, two hundred ten thousand, one hundred".