21983181310 has 16 divisors (see below), whose sum is σ = 40111778736. Its totient is φ = 8672816448.

The previous prime is 21983181307. The next prime is 21983181313. The reversal of 21983181310 is 1318138912.

It is an interprime number because it is at equal distance from previous prime (21983181307) and next prime (21983181313).

It is a super-2 number, since 2×21983181310² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21983181310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21983181313) 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, 15056244 + ... + 15057703.

It is an arithmetic number, because the mean of its divisors is an integer number (2506986171).

Almost surely, 2^21983181310 is an apocalyptic number.

21983181310 is a deficient number, since it is larger than the sum of its proper divisors (18128597426).

21983181310 is a wasteful number, since it uses less digits than its factorization.

21983181310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30114027.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 21983181310 in words is "twenty-one billion, nine hundred eighty-three million, one hundred eighty-one thousand, three hundred ten".