103103440400 has 30 divisors (see below), whose sum is σ = 247706016522. Its totient is φ = 41241376000.

The previous prime is 103103440367. The next prime is 103103440411. The reversal of 103103440400 is 4044301301.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 31105671424 + 71997768976 = 176368^2 + 268324^2 .

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 5 ways as a sum of consecutive naturals, for example, 128878901 + ... + 128879700.

Almost surely, 2^103103440400 is an apocalyptic number.

103103440400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103103440400 is an abundant number, since it is smaller than the sum of its proper divisors (144602576122).

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

103103440400 is a wasteful number, since it uses less digits than its factorization.

103103440400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257758619 (or 257758608 counting only the distinct ones).

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

Adding to 103103440400 its reverse (4044301301), we get a palindrome (107147741701).

The spelling of 103103440400 in words is "one hundred three billion, one hundred three million, four hundred forty thousand, four hundred".