21122043441031 has 8 divisors (see below), whose sum is σ = 22750109409104. Its totient is φ = 19494447958080.

The previous prime is 21122043441029. The next prime is 21122043441049. The reversal of 21122043441031 is 13014434022112.

It is a happy number.

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 21122043441031 - 2¹ = 21122043441029 is a prime.

It is a super-2 number, since 2×21122043441031² (a number of 27 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 (21122043444031) 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, 117528030 + ... + 117707611.

It is an arithmetic number, because the mean of its divisors is an integer number (2843763676138).

Almost surely, 2^{21122043441031} is an apocalyptic number.

21122043441031 is a deficient number, since it is larger than the sum of its proper divisors (1628065968073).

21122043441031 is a wasteful number, since it uses less digits than its factorization.

21122043441031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235242561.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21122043441031 its reverse (13014434022112), we get a palindrome (34136477463143).

The spelling of 21122043441031 in words is "twenty-one trillion, one hundred twenty-two billion, forty-three million, four hundred forty-one thousand, thirty-one".