1153022100 has 36 divisors (see below), whose sum is σ = 3336078144. Its totient is φ = 307472480.

The previous prime is 1153022077. The next prime is 1153022113. The reversal of 1153022100 is 12203511.

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 1153022100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1921404 + ... + 1922003.

Almost surely, 2^1153022100 is an apocalyptic number.

1153022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153022100 is an abundant number, since it is smaller than the sum of its proper divisors (2183056044).

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

1153022100 is a wasteful number, since it uses less digits than its factorization.

1153022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843424 (or 3843417 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1153022100 is about 33956.1791136753. The cubic root of 1153022100 is about 1048.6064961054.

Adding to 1153022100 its reverse (12203511), we get a palindrome (1165225611).

The spelling of 1153022100 in words is "one billion, one hundred fifty-three million, twenty-two thousand, one hundred".