11311403612 has 6 divisors (see below), whose sum is σ = 19794956328. Its totient is φ = 5655701804.

The previous prime is 11311403599. The next prime is 11311403651. The reversal of 11311403612 is 21630411311.

It is a happy number.

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, 1413925448 + ... + 1413925455.

It is an arithmetic number, because the mean of its divisors is an integer number (3299159388).

Almost surely, 2^11311403612 is an apocalyptic number.

It is an amenable number.

11311403612 is a deficient number, since it is larger than the sum of its proper divisors (8483552716).

11311403612 is a wasteful number, since it uses less digits than its factorization.

11311403612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827850907 (or 2827850905 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 11311403612 its reverse (21630411311), we get a palindrome (32941814923).

The spelling of 11311403612 in words is "eleven billion, three hundred eleven million, four hundred three thousand, six hundred twelve".