1216146143123 has 16 divisors (see below), whose sum is σ = 1322558241120. Its totient is φ = 1113612304896.

The previous prime is 1216146143083. The next prime is 1216146143131. The reversal of 1216146143123 is 3213416416121.

It is a cyclic number.

It is not a de Polignac number, because 1216146143123 - 2¹² = 1216146139027 is a prime.

It is a super-2 number, since 2×1216146143123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1216146143143) 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, 14941565 + ... + 15022737.

It is an arithmetic number, because the mean of its divisors is an integer number (82659890070).

Almost surely, 2^{1216146143123} is an apocalyptic number.

1216146143123 is a deficient number, since it is larger than the sum of its proper divisors (106412097997).

1216146143123 is a wasteful number, since it uses less digits than its factorization.

1216146143123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105046.

The product of its digits is 20736, while the sum is 35.

The spelling of 1216146143123 in words is "one trillion, two hundred sixteen billion, one hundred forty-six million, one hundred forty-three thousand, one hundred twenty-three".