4020232343131 has 4 divisors (see below), whose sum is σ = 4037053399200. Its totient is φ = 4003411287064.

The previous prime is 4020232343119. The next prime is 4020232343167. The reversal of 4020232343131 is 1313432320204.

It is a happy number.

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 4020232343131 - 2⁷ = 4020232343003 is a prime.

It is a super-2 number, since 2×4020232343131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4020232343131.

It is not an unprimeable number, because it can be changed into a prime (4020232343431) 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, 8410527676 + ... + 8410528153.

It is an arithmetic number, because the mean of its divisors is an integer number (1009263349800).

Almost surely, 2^{4020232343131} is an apocalyptic number.

4020232343131 is a deficient number, since it is larger than the sum of its proper divisors (16821056069).

4020232343131 is a wasteful number, since it uses less digits than its factorization.

4020232343131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16821056068.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 4020232343131 its reverse (1313432320204), we get a palindrome (5333664663335).

The spelling of 4020232343131 in words is "four trillion, twenty billion, two hundred thirty-two million, three hundred forty-three thousand, one hundred thirty-one".