213143012431 has 8 divisors (see below), whose sum is σ = 222473422944. Its totient is φ = 203817878880.

The previous prime is 213143012399. The next prime is 213143012461. The reversal of 213143012431 is 134210341312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213143012431 - 2⁵ = 213143012399 is a prime.

It is a super-4 number, since 4×213143012431⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213143012396 and 213143012405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213143012461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1236580 + ... + 1398361.

It is an arithmetic number, because the mean of its divisors is an integer number (27809177868).

Almost surely, 2^213143012431 is an apocalyptic number.

213143012431 is a deficient number, since it is larger than the sum of its proper divisors (9330410513).

213143012431 is a wasteful number, since it uses less digits than its factorization.

213143012431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638481.

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

Adding to 213143012431 its reverse (134210341312), we get a palindrome (347353353743).

The spelling of 213143012431 in words is "two hundred thirteen billion, one hundred forty-three million, twelve thousand, four hundred thirty-one".