2102423202 has 80 divisors (see below), whose sum is σ = 5192665632. Its totient is φ = 630478080.

The previous prime is 2102423159. The next prime is 2102423249. The reversal of 2102423202 is 2023242012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 166773 + ... + 178935.

Almost surely, 2^2102423202 is an apocalyptic number.

2102423202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102423202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596332816).

2102423202 is an abundant number, since it is smaller than the sum of its proper divisors (3090242430).

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

2102423202 is a wasteful number, since it uses less digits than its factorization.

2102423202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12285 (or 12276 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2102423202 is about 45852.1886282433. The cubic root of 2102423202 is about 1281.0715315265.

Adding to 2102423202 its reverse (2023242012), we get a palindrome (4125665214).

It can be divided in two parts, 210242 and 3202, that added together give a square (213444 = 462²).

The spelling of 2102423202 in words is "two billion, one hundred two million, four hundred twenty-three thousand, two hundred two".