1513422203 has 4 divisors (see below), whose sum is σ = 1534154088. Its totient is φ = 1492690320.

The previous prime is 1513422173. The next prime is 1513422223. The reversal of 1513422203 is 3022243151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3022243151 = 19 ⋅159065429.

It is a cyclic number.

It is not a de Polignac number, because 1513422203 - 2⁸ = 1513421947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1513422223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10365833 + ... + 10365978.

It is an arithmetic number, because the mean of its divisors is an integer number (383538522).

Almost surely, 2^1513422203 is an apocalyptic number.

1513422203 is a deficient number, since it is larger than the sum of its proper divisors (20731885).

1513422203 is an equidigital number, since it uses as much as digits as its factorization.

1513422203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20731884.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1513422203 is about 38902.7274493704. The cubic root of 1513422203 is about 1148.1184615036.

Adding to 1513422203 its reverse (3022243151), we get a palindrome (4535665354).

The spelling of 1513422203 in words is "one billion, five hundred thirteen million, four hundred twenty-two thousand, two hundred three".