212113331403 has 24 divisors (see below), whose sum is σ = 294335886480. Its totient is φ = 135713605440.

The previous prime is 212113331401. The next prime is 212113331429. The reversal of 212113331403 is 304133311212.

It is not a de Polignac number, because 212113331403 - 2¹ = 212113331401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212113331401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2382633 + ... + 2470053.

It is an arithmetic number, because the mean of its divisors is an integer number (12263995270).

Almost surely, 2^212113331403 is an apocalyptic number.

212113331403 is a deficient number, since it is larger than the sum of its proper divisors (82222555077).

212113331403 is an equidigital number, since it uses as much as digits as its factorization.

212113331403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87787 (or 87620 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 212113331403 its reverse (304133311212), we get a palindrome (516246642615).

The spelling of 212113331403 in words is "two hundred twelve billion, one hundred thirteen million, three hundred thirty-one thousand, four hundred three".