13023102440 has 32 divisors (see below), whose sum is σ = 29305617480. Its totient is φ = 5208594432.

The previous prime is 13023102431. The next prime is 13023102457. The reversal of 13023102440 is 4420132031.

It can be written as a sum of positive squares in 4 ways, for example, as 7355120644 + 5667981796 = 85762^2 + 75286^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 429872 + ... + 459168.

Almost surely, 2^13023102440 is an apocalyptic number.

13023102440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13023102440 is an abundant number, since it is smaller than the sum of its proper divisors (16282515040).

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

13023102440 is a wasteful number, since it uses less digits than its factorization.

13023102440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40421 (or 40417 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13023102440 its reverse (4420132031), we get a palindrome (17443234471).

The spelling of 13023102440 in words is "thirteen billion, twenty-three million, one hundred two thousand, four hundred forty".