103440021330 has 32 divisors (see below), whose sum is σ = 248320297728. Its totient is φ = 27576867200.

The previous prime is 103440021283. The next prime is 103440021343. The reversal of 103440021330 is 33120044301.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103440021297 and 103440021306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327786 + ... + 560645.

It is an arithmetic number, because the mean of its divisors is an integer number (7760009304).

Almost surely, 2^103440021330 is an apocalyptic number.

103440021330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103440021330 is an abundant number, since it is smaller than the sum of its proper divisors (144880276398).

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

103440021330 is a wasteful number, since it uses less digits than its factorization.

103440021330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892322.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 103440021330 its reverse (33120044301), we get a palindrome (136560065631).

The spelling of 103440021330 in words is "one hundred three billion, four hundred forty million, twenty-one thousand, three hundred thirty".