1202342100 has 72 divisors (see below), whose sum is σ = 3544460640. Its totient is φ = 314570880.

The previous prime is 1202342083. The next prime is 1202342101. The reversal of 1202342100 is 12432021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1202342100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202342101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21910 + ... + 53709.

It is an arithmetic number, because the mean of its divisors is an integer number (49228620).

Almost surely, 2^1202342100 is an apocalyptic number.

1202342100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202342100 is an abundant number, since it is smaller than the sum of its proper divisors (2342118540).

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

1202342100 is a wasteful number, since it uses less digits than its factorization.

1202342100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75689 (or 75682 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1202342100 is about 34674.8049742172. The cubic root of 1202342100 is about 1063.3494678444.

Adding to 1202342100 its reverse (12432021), we get a palindrome (1214774121).

The spelling of 1202342100 in words is "one billion, two hundred two million, three hundred forty-two thousand, one hundred".