1200031444100 has 18 divisors (see below), whose sum is σ = 2604068233914. Its totient is φ = 480012577600.

The previous prime is 1200031444097. The next prime is 1200031444121. The reversal of 1200031444100 is 14441300021.

It can be written as a sum of positive squares in 3 ways, for example, as 301570115716 + 898461328384 = 549154^2 + 947872^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6000157121 + ... + 6000157320.

Almost surely, 2^{1200031444100} is an apocalyptic number.

1200031444100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200031444100 is an abundant number, since it is smaller than the sum of its proper divisors (1404036789814).

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

1200031444100 is a wasteful number, since it uses less digits than its factorization.

1200031444100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12000314455 (or 12000314448 counting only the distinct ones).

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

Adding to 1200031444100 its reverse (14441300021), we get a palindrome (1214472744121).

The spelling of 1200031444100 in words is "one trillion, two hundred billion, thirty-one million, four hundred forty-four thousand, one hundred".