1211430445444 has 24 divisors (see below), whose sum is σ = 2193546600000. Its totient is φ = 584711221920.

The previous prime is 1211430445427. The next prime is 1211430445469. The reversal of 1211430445444 is 4445440341121.

It is a super-3 number, since 3×1211430445444³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464662 + ... + 1624429.

It is an arithmetic number, because the mean of its divisors is an integer number (91397775000).

Almost surely, 2^{1211430445444} is an apocalyptic number.

It is an amenable number.

1211430445444 is a deficient number, since it is larger than the sum of its proper divisors (982116154556).

1211430445444 is a wasteful number, since it uses less digits than its factorization.

1211430445444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094123 (or 2094121 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 37.

Adding to 1211430445444 its reverse (4445440341121), we get a palindrome (5656870786565).

The spelling of 1211430445444 in words is "one trillion, two hundred eleven billion, four hundred thirty million, four hundred forty-five thousand, four hundred forty-four".