11313231402 has 16 divisors (see below), whose sum is σ = 24683414112. Its totient is φ = 3428251920.

The previous prime is 11313231361. The next prime is 11313231403. The reversal of 11313231402 is 20413231311.

It is not an unprimeable number, because it can be changed into a prime (11313231403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85706233 + ... + 85706364.

It is an arithmetic number, because the mean of its divisors is an integer number (1542713382).

Almost surely, 2^11313231402 is an apocalyptic number.

11313231402 is an abundant number, since it is smaller than the sum of its proper divisors (13370182710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11313231402 is a wasteful number, since it uses less digits than its factorization.

11313231402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171412613.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11313231402 its reverse (20413231311), we get a palindrome (31726462713).

Subtracting 11313231402 from its reverse (20413231311), we obtain a palindrome (9099999909).

The spelling of 11313231402 in words is "eleven billion, three hundred thirteen million, two hundred thirty-one thousand, four hundred two".