2043423211031 has 4 divisors (see below), whose sum is σ = 2043733721064. Its totient is φ = 2043112701000.

The previous prime is 2043423210991. The next prime is 2043423211057. The reversal of 2043423211031 is 1301123243402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2043423211031 is a prime.

It is a super-2 number, since 2×2043423211031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043423211931) 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, 155245145 + ... + 155258306.

It is an arithmetic number, because the mean of its divisors is an integer number (510933430266).

Almost surely, 2^{2043423211031} is an apocalyptic number.

2043423211031 is a deficient number, since it is larger than the sum of its proper divisors (310510033).

2043423211031 is an equidigital number, since it uses as much as digits as its factorization.

2043423211031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310510032.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 2043423211031 its reverse (1301123243402), we get a palindrome (3344546454433).

The spelling of 2043423211031 in words is "two trillion, forty-three billion, four hundred twenty-three million, two hundred eleven thousand, thirty-one".