21731411150 has 24 divisors (see below), whose sum is σ = 41280438240. Its totient is φ = 8507615360.

The previous prime is 21731411137. The next prime is 21731411159. The reversal of 21731411150 is 5111413712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21731411159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4621355 + ... + 4626054.

It is an arithmetic number, because the mean of its divisors is an integer number (1720018260).

Almost surely, 2^21731411150 is an apocalyptic number.

21731411150 is a deficient number, since it is larger than the sum of its proper divisors (19549027090).

21731411150 is a wasteful number, since it uses less digits than its factorization.

21731411150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9247468 (or 9247463 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 26.

Adding to 21731411150 its reverse (5111413712), we get a palindrome (26842824862).

The spelling of 21731411150 in words is "twenty-one billion, seven hundred thirty-one million, four hundred eleven thousand, one hundred fifty".