1213203113003 has 8 divisors (see below), whose sum is σ = 1409247644640. Its totient is φ = 1022841031680.

The previous prime is 1213203112981. The next prime is 1213203113009. The reversal of 1213203113003 is 3003113023121.

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 1213203113003 - 2⁸ = 1213203112747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213203113009) 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, 1420612118 + ... + 1420612971.

It is an arithmetic number, because the mean of its divisors is an integer number (176155955580).

Almost surely, 2^{1213203113003} is an apocalyptic number.

1213203113003 is a deficient number, since it is larger than the sum of its proper divisors (196044531637).

1213203113003 is an equidigital number, since it uses as much as digits as its factorization.

1213203113003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841225157.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1213203113003 its reverse (3003113023121), we get a palindrome (4216316136124).

It can be divided in two parts, 121320 and 3113003, that added together give a palindrome (3234323).

The spelling of 1213203113003 in words is "one trillion, two hundred thirteen billion, two hundred three million, one hundred thirteen thousand, three".