113001012 has 18 divisors (see below), whose sum is σ = 285641538. Its totient is φ = 37666992.

The previous prime is 113001011. The next prime is 113001029. The reversal of 113001012 is 210100311.

It can be written as a sum of positive squares in only one way, i.e., 58890276 + 54110736 = 7674^2 + 7356^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 113000985 and 113001003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113001011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1569423 + ... + 1569494.

Almost surely, 2^113001012 is an apocalyptic number.

113001012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113001012 is an abundant number, since it is smaller than the sum of its proper divisors (172640526).

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

113001012 is a wasteful number, since it uses less digits than its factorization.

113001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138927 (or 3138922 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 113001012 is about 10630.1934131040. The cubic root of 113001012 is about 483.4602559526.

Adding to 113001012 its reverse (210100311), we get a palindrome (323101323).

The spelling of 113001012 in words is "one hundred thirteen million, one thousand, twelve".