1131321403402 has 16 divisors (see below), whose sum is σ = 1834575251040. Its totient is φ = 521405596368.

The previous prime is 1131321403361. The next prime is 1131321403417. The reversal of 1131321403402 is 2043041231311.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402317728 + ... + 402320539.

It is an arithmetic number, because the mean of its divisors is an integer number (114660953190).

Almost surely, 2^{1131321403402} is an apocalyptic number.

1131321403402 is a deficient number, since it is larger than the sum of its proper divisors (703253847638).

1131321403402 is a wasteful number, since it uses less digits than its factorization.

1131321403402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804638325.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1131321403402 its reverse (2043041231311), we get a palindrome (3174362634713).

The spelling of 1131321403402 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-one million, four hundred three thousand, four hundred two".