1211123120014 has 32 divisors (see below), whose sum is σ = 1925362598400. Its totient is φ = 569772597600.

The previous prime is 1211123119993. The next prime is 1211123120029. The reversal of 1211123120014 is 4100213211121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 1211123119973 and 1211123120000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31694832 + ... + 31733020.

It is an arithmetic number, because the mean of its divisors is an integer number (60167581200).

Almost surely, 2^{1211123120014} is an apocalyptic number.

1211123120014 is a deficient number, since it is larger than the sum of its proper divisors (714239478386).

1211123120014 is a wasteful number, since it uses less digits than its factorization.

1211123120014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43888.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1211123120014 its reverse (4100213211121), we get a palindrome (5311336331135).

The spelling of 1211123120014 in words is "one trillion, two hundred eleven billion, one hundred twenty-three million, one hundred twenty thousand, fourteen".