1213143244151 has 32 divisors (see below), whose sum is σ = 1367662786560. Its totient is φ = 1069272354816.

The previous prime is 1213143244141. The next prime is 1213143244153. The reversal of 1213143244151 is 1514423413121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213143244151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213143244153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27016220 + ... + 27061086.

It is an arithmetic number, because the mean of its divisors is an integer number (42739462080).

Almost surely, 2^{1213143244151} is an apocalyptic number.

1213143244151 is a deficient number, since it is larger than the sum of its proper divisors (154519542409).

1213143244151 is a wasteful number, since it uses less digits than its factorization.

1213143244151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45863.

The product of its digits is 11520, while the sum is 32.

Adding to 1213143244151 its reverse (1514423413121), we get a palindrome (2727566657272).

The spelling of 1213143244151 in words is "one trillion, two hundred thirteen billion, one hundred forty-three million, two hundred forty-four thousand, one hundred fifty-one".