4020212134231 has 4 divisors (see below), whose sum is σ = 4020551891872. Its totient is φ = 4019872376592.

The previous prime is 4020212134219. The next prime is 4020212134271. The reversal of 4020212134231 is 1324312120204.

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 4020212134231 - 2⁵ = 4020212134199 is a prime.

It is a super-2 number, since 2×4020212134231² (a number of 26 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 = 4020212134196 and 4020212134205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020212134271) 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, 169861071 + ... + 169884736.

It is an arithmetic number, because the mean of its divisors is an integer number (1005137972968).

Almost surely, 2^{4020212134231} is an apocalyptic number.

4020212134231 is a deficient number, since it is larger than the sum of its proper divisors (339757641).

4020212134231 is a wasteful number, since it uses less digits than its factorization.

4020212134231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339757640.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 4020212134231 its reverse (1324312120204), we get a palindrome (5344524254435).

The spelling of 4020212134231 in words is "four trillion, twenty billion, two hundred twelve million, one hundred thirty-four thousand, two hundred thirty-one".