1023112533400 has 96 divisors (see below), whose sum is σ = 2538495383040. Its totient is φ = 382138767360.

The previous prime is 1023112533299. The next prime is 1023112533419. The reversal of 1023112533400 is 43352113201.

It is a happy number.

It is a super-2 number, since 2×1023112533400² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 752907 + ... + 1616506.

It is an arithmetic number, because the mean of its divisors is an integer number (26442660240).

Almost surely, 2^{1023112533400} is an apocalyptic number.

1023112533400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023112533400 is an abundant number, since it is smaller than the sum of its proper divisors (1515382849640).

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

1023112533400 is a wasteful number, since it uses less digits than its factorization.

1023112533400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369573 (or 2369564 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 1023112533400 its reverse (43352113201), we get a palindrome (1066464646601).

The spelling of 1023112533400 in words is "one trillion, twenty-three billion, one hundred twelve million, five hundred thirty-three thousand, four hundred".