1013801100 has 72 divisors (see below), whose sum is σ = 3158912400. Its totient is φ = 249550080.

The previous prime is 1013801077. The next prime is 1013801101. The reversal of 1013801100 is 11083101.

It is a super-2 number, since 2×1013801100² = 2055585340722420000, which contains 22 as substring.

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 1013801100.

It is not an unprimeable number, because it can be changed into a prime (1013801101) 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, 126075 + ... + 133874.

Almost surely, 2^1013801100 is an apocalyptic number.

1013801100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013801100 is an abundant number, since it is smaller than the sum of its proper divisors (2145111300).

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

1013801100 is a wasteful number, since it uses less digits than its factorization.

1013801100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259979 (or 259972 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 1013801100 is about 31840.2434035923. The cubic root of 1013801100 is about 1004.5793640807.

Adding to 1013801100 its reverse (11083101), we get a palindrome (1024884201).

The spelling of 1013801100 in words is "one billion, thirteen million, eight hundred one thousand, one hundred".