1011244030400 has 42 divisors (see below), whose sum is σ = 2488292346240. Its totient is φ = 404497611520.

The previous prime is 1011244030397. The next prime is 1011244030409. The reversal of 1011244030400 is 40304421101.

It is a super-2 number, since 2×1011244030400² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011244030409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 316012160 + ... + 316015359.

Almost surely, 2^{1011244030400} is an apocalyptic number.

1011244030400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011244030400 is an abundant number, since it is smaller than the sum of its proper divisors (1477048315840).

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

1011244030400 is an equidigital number, since it uses as much as digits as its factorization.

1011244030400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632027541 (or 632027526 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1011244030400 its reverse (40304421101), we get a palindrome (1051548451501).

The spelling of 1011244030400 in words is "one trillion, eleven billion, two hundred forty-four million, thirty thousand, four hundred".