12051532040 has 64 divisors (see below), whose sum is σ = 28934236800. Its totient is φ = 4504315392.

The previous prime is 12051531979. The next prime is 12051532049. The reversal of 12051532040 is 4023515021.

It is a super-2 number, since 2×12051532040² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12051531997 and 12051532015.

It is not an unprimeable number, because it can be changed into a prime (12051532049) 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, 53132 + ... + 164091.

It is an arithmetic number, because the mean of its divisors is an integer number (452097450).

Almost surely, 2^12051532040 is an apocalyptic number.

12051532040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12051532040 is an abundant number, since it is smaller than the sum of its proper divisors (16882704760).

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

12051532040 is a wasteful number, since it uses less digits than its factorization.

12051532040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217326 (or 217322 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 12051532040 in words is "twelve billion, fifty-one million, five hundred thirty-two thousand, forty".