213142031011 has 16 divisors (see below), whose sum is σ = 262404188928. Its totient is φ = 168591290400.

The previous prime is 213142030987. The next prime is 213142031099. The reversal of 213142031011 is 110130241312.

It is a de Polignac number, because none of the positive numbers 2^k-213142031011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213142031011.

It is not an unprimeable number, because it can be changed into a prime (213142031111) 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, 17785 + ... + 653146.

It is an arithmetic number, because the mean of its divisors is an integer number (16400261808).

Almost surely, 2^213142031011 is an apocalyptic number.

213142031011 is a deficient number, since it is larger than the sum of its proper divisors (49262157917).

213142031011 is a wasteful number, since it uses less digits than its factorization.

213142031011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674442.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 213142031011 its reverse (110130241312), we get a palindrome (323272272323).

The spelling of 213142031011 in words is "two hundred thirteen billion, one hundred forty-two million, thirty-one thousand, eleven".