1023311052504 has 160 divisors (see below), whose sum is σ = 3089102441040. Its totient is φ = 314619552000.

The previous prime is 1023311052473. The next prime is 1023311052523. The reversal of 1023311052504 is 4052501133201.

1023311052504 is a `hidden beast` number, since 1 + 0 + 23 + 3 + 110 + 525 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10912939 + ... + 11006309.

Almost surely, 2^{1023311052504} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023311052504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544551220520).

1023311052504 is an abundant number, since it is smaller than the sum of its proper divisors (2065791388536).

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

1023311052504 is a wasteful number, since it uses less digits than its factorization.

1023311052504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94703 (or 94690 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 1023311052504 its reverse (4052501133201), we get a palindrome (5075812185705).

The spelling of 1023311052504 in words is "one trillion, twenty-three billion, three hundred eleven million, fifty-two thousand, five hundred four".