142181023211 has 2 divisors, whose sum is σ = 142181023212. Its totient is φ = 142181023210.

The previous prime is 142181023147. The next prime is 142181023223. The reversal of 142181023211 is 112320181241.

It is a strong prime.

It is an emirp because it is prime and its reverse (112320181241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142181023211 - 2⁶ = 142181023147 is a prime.

It is a super-2 number, since 2×142181023211² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142181023111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71090511605 + 71090511606.

It is an arithmetic number, because the mean of its divisors is an integer number (71090511606).

Almost surely, 2^142181023211 is an apocalyptic number.

142181023211 is a deficient number, since it is larger than the sum of its proper divisors (1).

142181023211 is an equidigital number, since it uses as much as digits as its factorization.

142181023211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

The spelling of 142181023211 in words is "one hundred forty-two billion, one hundred eighty-one million, twenty-three thousand, two hundred eleven".