1200430440111 has 16 divisors (see below), whose sum is σ = 1836182582784. Its totient is φ = 683352034464.

The previous prime is 1200430440109. The next prime is 1200430440119. The reversal of 1200430440111 is 1110440340021.

It is not a de Polignac number, because 1200430440111 - 2¹ = 1200430440109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200430440119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108670056 + ... + 108681101.

It is an arithmetic number, because the mean of its divisors is an integer number (114761411424).

Almost surely, 2^{1200430440111} is an apocalyptic number.

1200430440111 is a deficient number, since it is larger than the sum of its proper divisors (635752142673).

1200430440111 is a wasteful number, since it uses less digits than its factorization.

1200430440111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217351430.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1200430440111 its reverse (1110440340021), we get a palindrome (2310870780132).

The spelling of 1200430440111 in words is "one trillion, two hundred billion, four hundred thirty million, four hundred forty thousand, one hundred eleven".