1030123042440 has 64 divisors (see below), whose sum is σ = 3090457497600. Its totient is φ = 274691622912.

The previous prime is 1030123042393. The next prime is 1030123042471. The reversal of 1030123042440 is 442403210301.

It is a super-2 number, since 2×1030123042440² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1030123042440.

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, 4967064 + ... + 5170296.

It is an arithmetic number, because the mean of its divisors is an integer number (48288398400).

Almost surely, 2^{1030123042440} is an apocalyptic number.

1030123042440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030123042440 is an abundant number, since it is smaller than the sum of its proper divisors (2060334455160).

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

1030123042440 is a wasteful number, since it uses less digits than its factorization.

1030123042440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245486 (or 245482 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1030123042440 its reverse (442403210301), we get a palindrome (1472526252741).

The spelling of 1030123042440 in words is "one trillion, thirty billion, one hundred twenty-three million, forty-two thousand, four hundred forty".