1023140321504 has 96 divisors (see below), whose sum is σ = 2346014845440. Its totient is φ = 430121083392.

The previous prime is 1023140321503. The next prime is 1023140321507. The reversal of 1023140321504 is 4051230413201.

It is a happy number.

It is a super-2 number, since 2×1023140321504² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023140321501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91681877 + ... + 91693035.

It is an arithmetic number, because the mean of its divisors is an integer number (24437654640).

Almost surely, 2^{1023140321504} is an apocalyptic number.

1023140321504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023140321504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1173007422720).

1023140321504 is an abundant number, since it is smaller than the sum of its proper divisors (1322874523936).

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

1023140321504 is a wasteful number, since it uses less digits than its factorization.

1023140321504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18952 (or 18944 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1023140321504 its reverse (4051230413201), we get a palindrome (5074370734705).

The spelling of 1023140321504 in words is "one trillion, twenty-three billion, one hundred forty million, three hundred twenty-one thousand, five hundred four".