1213314440402 has 16 divisors (see below), whose sum is σ = 1940009769600. Its totient is φ = 567452854800.

The previous prime is 1213314440389. The next prime is 1213314440431. The reversal of 1213314440402 is 2040444133121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202081349 + ... + 202087352.

It is an arithmetic number, because the mean of its divisors is an integer number (121250610600).

Almost surely, 2^{1213314440402} is an apocalyptic number.

1213314440402 is a deficient number, since it is larger than the sum of its proper divisors (726695329198).

1213314440402 is a wasteful number, since it uses less digits than its factorization.

1213314440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404168801.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1213314440402 its reverse (2040444133121), we get a palindrome (3253758573523).

The spelling of 1213314440402 in words is "one trillion, two hundred thirteen billion, three hundred fourteen million, four hundred forty thousand, four hundred two".