10121421043 has 8 divisors (see below), whose sum is σ = 10459859840. Its totient is φ = 9783728640.

The previous prime is 10121421029. The next prime is 10121421067. The reversal of 10121421043 is 34012412101.

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 10121421043 - 2²⁵ = 10087866611 is a prime.

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 10121421043.

It is not an unprimeable number, because it can be changed into a prime (10121421943) 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, 158958 + ... + 213331.

It is an arithmetic number, because the mean of its divisors is an integer number (1307482480).

Almost surely, 2^10121421043 is an apocalyptic number.

10121421043 is a deficient number, since it is larger than the sum of its proper divisors (338438797).

10121421043 is an equidigital number, since it uses as much as digits as its factorization.

10121421043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373197.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10121421043 its reverse (34012412101), we get a palindrome (44133833144).

The spelling of 10121421043 in words is "ten billion, one hundred twenty-one million, four hundred twenty-one thousand, forty-three".