213142100003431 has 4 divisors (see below), whose sum is σ = 213142152290200. Its totient is φ = 213142047716664.

The previous prime is 213142100003363. The next prime is 213142100003447. The reversal of 213142100003431 is 134300001241312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213142100003431 - 2⁷ = 213142100003303 is a prime.

It is a super-2 number, since 2×213142100003431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213142100003396 and 213142100003405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213142100093431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19459101 + ... + 28371478.

It is an arithmetic number, because the mean of its divisors is an integer number (53285538072550).

Almost surely, 2^{213142100003431} is an apocalyptic number.

213142100003431 is a deficient number, since it is larger than the sum of its proper divisors (52286769).

213142100003431 is an equidigital number, since it uses as much as digits as its factorization.

213142100003431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52286768.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 213142100003431 its reverse (134300001241312), we get a palindrome (347442101244743).

The spelling of 213142100003431 in words is "two hundred thirteen trillion, one hundred forty-two billion, one hundred million, three thousand, four hundred thirty-one".