12481311810 has 32 divisors (see below), whose sum is σ = 32678344512. Its totient is φ = 3025772480.

The previous prime is 12481311761. The next prime is 12481311811. The reversal of 12481311810 is 1811318421.

It is a super-2 number, since 2×12481311810² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12481311811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18910749 + ... + 18911408.

It is an arithmetic number, because the mean of its divisors is an integer number (1021198266).

Almost surely, 2^12481311810 is an apocalyptic number.

12481311810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12481311810 is an abundant number, since it is smaller than the sum of its proper divisors (20197032702).

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

12481311810 is a wasteful number, since it uses less digits than its factorization.

12481311810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37822178.

The product of its (nonzero) digits is 1536, while the sum is 30.

The spelling of 12481311810 in words is "twelve billion, four hundred eighty-one million, three hundred eleven thousand, eight hundred ten".