10012021043 has 4 divisors (see below), whose sum is σ = 10013746848. Its totient is φ = 10010295240.

The previous prime is 10012021037. The next prime is 10012021069. The reversal of 10012021043 is 34012021001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34012021001 = 7 ⋅4858860143.

It is a cyclic number.

It is not a de Polignac number, because 10012021043 - 2⁴ = 10012021027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10012021013) 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, 854171 + ... + 865812.

It is an arithmetic number, because the mean of its divisors is an integer number (2503436712).

Almost surely, 2^10012021043 is an apocalyptic number.

10012021043 is a deficient number, since it is larger than the sum of its proper divisors (1725805).

10012021043 is an equidigital number, since it uses as much as digits as its factorization.

10012021043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725804.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10012021043 its reverse (34012021001), we get a palindrome (44024042044).

The spelling of 10012021043 in words is "ten billion, twelve million, twenty-one thousand, forty-three".