1145021438900 has 36 divisors (see below), whose sum is σ = 2484743987040. Its totient is φ = 457999826400.

The previous prime is 1145021438893. The next prime is 1145021438903. The reversal of 1145021438900 is 98341205411.

It is a super-2 number, since 2×1145021438900² (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 (1145021438903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8611121 + ... + 8743079.

Almost surely, 2^{1145021438900} is an apocalyptic number.

1145021438900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145021438900 is an abundant number, since it is smaller than the sum of its proper divisors (1339722548140).

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

1145021438900 is a wasteful number, since it uses less digits than its factorization.

1145021438900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218744 (or 218737 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 1145021438900 in words is "one trillion, one hundred forty-five billion, twenty-one million, four hundred thirty-eight thousand, nine hundred".