1023343310440 has 128 divisors (see below), whose sum is σ = 2751308985600. Its totient is φ = 338157998080.

The previous prime is 1023343310413. The next prime is 1023343310443. The reversal of 1023343310440 is 440133433201.

It is a junction number, because it is equal to n+sod(n) for n = 1023343310399 and 1023343310408.

It is not an unprimeable number, because it can be changed into a prime (1023343310443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2141884 + ... + 2575723.

It is an arithmetic number, because the mean of its divisors is an integer number (21494601450).

Almost surely, 2^{1023343310440} is an apocalyptic number.

1023343310440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023343310440 is an abundant number, since it is smaller than the sum of its proper divisors (1727965675160).

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

1023343310440 is a wasteful number, since it uses less digits than its factorization.

1023343310440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717675 (or 4717671 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 1023343310440 its reverse (440133433201), we get a palindrome (1463476743641).

The spelling of 1023343310440 in words is "one trillion, twenty-three billion, three hundred forty-three million, three hundred ten thousand, four hundred forty".