213020142102 has 96 divisors (see below), whose sum is σ = 482034309120. Its totient is φ = 67931360640.

The previous prime is 213020142059. The next prime is 213020142109. The reversal of 213020142102 is 201241020312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213020142109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11016799 + ... + 11036117.

It is an arithmetic number, because the mean of its divisors is an integer number (5021190720).

Almost surely, 2^213020142102 is an apocalyptic number.

213020142102 is an abundant number, since it is smaller than the sum of its proper divisors (269014167018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213020142102 is a wasteful number, since it uses less digits than its factorization.

213020142102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19658 (or 19655 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 213020142102 its reverse (201241020312), we get a palindrome (414261162414).

The spelling of 213020142102 in words is "two hundred thirteen billion, twenty million, one hundred forty-two thousand, one hundred two".