11311261654 has 16 divisors (see below), whose sum is σ = 21153528576. Its totient is φ = 4406985000.

The previous prime is 11311261651. The next prime is 11311261669. The reversal of 11311261654 is 45616211311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311261651) 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, 36724722 + ... + 36725029.

It is an arithmetic number, because the mean of its divisors is an integer number (1322095536).

Almost surely, 2^11311261654 is an apocalyptic number.

11311261654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11311261654 is a deficient number, since it is larger than the sum of its proper divisors (9842266922).

11311261654 is a wasteful number, since it uses less digits than its factorization.

11311261654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73449771.

The product of its digits is 4320, while the sum is 31.

Adding to 11311261654 its reverse (45616211311), we get a palindrome (56927472965).

The spelling of 11311261654 in words is "eleven billion, three hundred eleven million, two hundred sixty-one thousand, six hundred fifty-four".