12403551340 has 24 divisors (see below), whose sum is σ = 26093259360. Its totient is φ = 4952696448.

The previous prime is 12403551337. The next prime is 12403551359. The reversal of 12403551340 is 4315530421.

It is a junction number, because it is equal to n+sod(n) for n = 12403551299 and 12403551308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533592 + ... + 556351.

It is an arithmetic number, because the mean of its divisors is an integer number (1087219140).

Almost surely, 2^12403551340 is an apocalyptic number.

12403551340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12403551340 is an abundant number, since it is smaller than the sum of its proper divisors (13689708020).

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

12403551340 is a wasteful number, since it uses less digits than its factorization.

12403551340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090521 (or 1090519 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 12403551340 in words is "twelve billion, four hundred three million, five hundred fifty-one thousand, three hundred forty".