201213203403 has 4 divisors (see below), whose sum is σ = 268284271208. Its totient is φ = 134142135600.

The previous prime is 201213203371. The next prime is 201213203423. The reversal of 201213203403 is 304302312102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201213203403 - 2⁵ = 201213203371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201213203403.

It is not an unprimeable number, because it can be changed into a prime (201213203423) 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, 33535533898 + ... + 33535533903.

It is an arithmetic number, because the mean of its divisors is an integer number (67071067802).

Almost surely, 2^201213203403 is an apocalyptic number.

201213203403 is a deficient number, since it is larger than the sum of its proper divisors (67071067805).

201213203403 is an equidigital number, since it uses as much as digits as its factorization.

201213203403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67071067804.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 201213203403 its reverse (304302312102), we get a palindrome (505515515505).

The spelling of 201213203403 in words is "two hundred one billion, two hundred thirteen million, two hundred three thousand, four hundred three".