11111304402 has 36 divisors (see below), whose sum is σ = 26462051070. Its totient is φ = 3367061280.

The previous prime is 11111304401. The next prime is 11111304403. The reversal of 11111304402 is 20440311111.

11111304402 is a `hidden beast` number, since 111 + 113 + 0 + 440 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (11111304401) and next prime (11111304403).

It can be written as a sum of positive squares in only one way, i.e., 6340777641 + 4770526761 = 79629^2 + 69069^2 .

It is a super-2 number, since 2×11111304402² (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (11111304401) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2548627 + ... + 2552982.

Almost surely, 2^11111304402 is an apocalyptic number.

11111304402 is an abundant number, since it is smaller than the sum of its proper divisors (15350746668).

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

11111304402 is a wasteful number, since it uses less digits than its factorization.

11111304402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101639 (or 5101625 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11111304402 its reverse (20440311111), we get a palindrome (31551615513).

It can be divided in two parts, 11111 and 304402, that added together give a palindrome (315513).

The spelling of 11111304402 in words is "eleven billion, one hundred eleven million, three hundred four thousand, four hundred two".