1013120203 has 8 divisors (see below), whose sum is σ = 1035164160. Its totient is φ = 991096680.

The previous prime is 1013120183. The next prime is 1013120231. The reversal of 1013120203 is 3020213101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1013120203 - 2¹³ = 1013112011 is a prime.

It is a super-2 number, since 2×1013120203² = 2052825091453522418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013120243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137938 + ... + 145096.

It is an arithmetic number, because the mean of its divisors is an integer number (129395520).

Almost surely, 2^1013120203 is an apocalyptic number.

1013120203 is a deficient number, since it is larger than the sum of its proper divisors (22043957).

1013120203 is an equidigital number, since it uses as much as digits as its factorization.

1013120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10217.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1013120203 is about 31829.5492113853. The cubic root of 1013120203 is about 1004.3544125700.

Adding to 1013120203 its reverse (3020213101), we get a palindrome (4033333304).

The spelling of 1013120203 in words is "one billion, thirteen million, one hundred twenty thousand, two hundred three".