213231004142 has 12 divisors (see below), whose sum is σ = 346342667040. Its totient is φ = 98414309448.

The previous prime is 213231004141. The next prime is 213231004187. The reversal of 213231004142 is 241400132312.

It is a super-2 number, since 2×213231004142² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213231004141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 315430142 + ... + 315430817.

It is an arithmetic number, because the mean of its divisors is an integer number (28861888920).

Almost surely, 2^213231004142 is an apocalyptic number.

213231004142 is a deficient number, since it is larger than the sum of its proper divisors (133111662898).

213231004142 is a wasteful number, since it uses less digits than its factorization.

213231004142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630860987 (or 630860974 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 213231004142 its reverse (241400132312), we get a palindrome (454631136454).

The spelling of 213231004142 in words is "two hundred thirteen billion, two hundred thirty-one million, four thousand, one hundred forty-two".