113003121 has 16 divisors (see below), whose sum is σ = 187849728. Its totient is φ = 58702800.

The previous prime is 113003119. The next prime is 113003123. The reversal of 113003121 is 121300311.

It is an interprime number because it is at equal distance from previous prime (113003119) and next prime (113003123).

It is not a de Polignac number, because 113003121 - 2¹ = 113003119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113003097 and 113003106.

It is not an unprimeable number, because it can be changed into a prime (113003123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244365 + ... + 244826.

It is an arithmetic number, because the mean of its divisors is an integer number (11740608).

Almost surely, 2^113003121 is an apocalyptic number.

113003121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113003121 is a deficient number, since it is larger than the sum of its proper divisors (74846607).

113003121 is a wasteful number, since it uses less digits than its factorization.

113003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489212.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 113003121 is about 10630.2926112125. The cubic root of 113003121 is about 483.4632636288.

Adding to 113003121 its reverse (121300311), we get a palindrome (234303432).

The spelling of 113003121 in words is "one hundred thirteen million, three thousand, one hundred twenty-one".