1213210022403 has 16 divisors (see below), whose sum is σ = 1624458233376. Its totient is φ = 805384796160.

The previous prime is 1213210022399. The next prime is 1213210022407. The reversal of 1213210022403 is 3042200123121.

It is an interprime number because it is at equal distance from previous prime (1213210022399) and next prime (1213210022407).

It is not a de Polignac number, because 1213210022403 - 2² = 1213210022399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1213210022403.

It is not an unprimeable number, because it can be changed into a prime (1213210022407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9754375 + ... + 9877967.

It is an arithmetic number, because the mean of its divisors is an integer number (101528639586).

Almost surely, 2^{1213210022403} is an apocalyptic number.

1213210022403 is a deficient number, since it is larger than the sum of its proper divisors (411248210973).

1213210022403 is a wasteful number, since it uses less digits than its factorization.

1213210022403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137414.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1213210022403 its reverse (3042200123121), we get a palindrome (4255410145524).

The spelling of 1213210022403 in words is "one trillion, two hundred thirteen billion, two hundred ten million, twenty-two thousand, four hundred three".