11320131402 has 64 divisors (see below), whose sum is σ = 25463842560. Its totient is φ = 3727406592.

The previous prime is 11320131397. The next prime is 11320131419. The reversal of 11320131402 is 20413102311.

11320131402 is a `hidden beast` number, since 1 + 132 + 0 + 131 + 402 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1906963 + ... + 1912889.

It is an arithmetic number, because the mean of its divisors is an integer number (397872540).

Almost surely, 2^11320131402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11320131402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12731921280).

11320131402 is an abundant number, since it is smaller than the sum of its proper divisors (14143711158).

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

11320131402 is a wasteful number, since it uses less digits than its factorization.

11320131402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364 (or 6358 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11320131402 its reverse (20413102311), we get a palindrome (31733233713).

The spelling of 11320131402 in words is "eleven billion, three hundred twenty million, one hundred thirty-one thousand, four hundred two".