1023303045400 has 96 divisors (see below), whose sum is σ = 2387586738240. Its totient is φ = 407876751360.

The previous prime is 1023303045287. The next prime is 1023303045431. The reversal of 1023303045400 is 45403033201.

It is a super-2 number, since 2×1023303045400² (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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98989032 + ... + 98999368.

It is an arithmetic number, because the mean of its divisors is an integer number (24870695190).

Almost surely, 2^{1023303045400} is an apocalyptic number.

1023303045400 is a gapful number since it is divisible by the number (10) 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 1023303045400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1193793369120).

1023303045400 is an abundant number, since it is smaller than the sum of its proper divisors (1364283692840).

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

1023303045400 is a wasteful number, since it uses less digits than its factorization.

1023303045400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12053 (or 12044 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 1023303045400 its reverse (45403033201), we get a palindrome (1068706078601).

The spelling of 1023303045400 in words is "one trillion, twenty-three billion, three hundred three million, forty-five thousand, four hundred".