19311011292 has 48 divisors (see below), whose sum is σ = 45393576704. Its totient is φ = 6389280000.

The previous prime is 19311011267. The next prime is 19311011303. The reversal of 19311011292 is 29211011391.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2770692 + ... + 2777652.

Almost surely, 2^19311011292 is an apocalyptic number.

19311011292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19311011292 is an abundant number, since it is smaller than the sum of its proper divisors (26082565412).

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

19311011292 is a wasteful number, since it uses less digits than its factorization.

19311011292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8650 (or 8648 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 30.

Subtracting 19311011292 from its reverse (29211011391), we obtain a palindrome (9900000099).

It can be divided in two parts, 193110 and 11292, that added together give a palindrome (204402).

The spelling of 19311011292 in words is "nineteen billion, three hundred eleven million, eleven thousand, two hundred ninety-two".