11402240312 has 8 divisors (see below), whose sum is σ = 21379200600. Its totient is φ = 5701120152.

The previous prime is 11402240303. The next prime is 11402240327. The reversal of 11402240312 is 21304220411.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11402240312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712640012 + ... + 712640027.

It is an arithmetic number, because the mean of its divisors is an integer number (2672400075).

Almost surely, 2^11402240312 is an apocalyptic number.

It is an amenable number.

11402240312 is a deficient number, since it is larger than the sum of its proper divisors (9976960288).

11402240312 is a wasteful number, since it uses less digits than its factorization.

11402240312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425280045 (or 1425280041 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11402240312 its reverse (21304220411), we get a palindrome (32706460723).

The spelling of 11402240312 in words is "eleven billion, four hundred two million, two hundred forty thousand, three hundred twelve".