21203000322031 has 8 divisors (see below), whose sum is σ = 23928150834000. Its totient is φ = 18610783981440.

The previous prime is 21203000322001. The next prime is 21203000322047. The reversal of 21203000322031 is 13022300030212.

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 21203000322031 - 2⁴¹ = 19003977066479 is a prime.

It is a super-2 number, since 2×21203000322031² (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 (21203000322001) 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, 33233542506 + ... + 33233543143.

It is an arithmetic number, because the mean of its divisors is an integer number (2991018854250).

Almost surely, 2^{21203000322031} is an apocalyptic number.

21203000322031 is a deficient number, since it is larger than the sum of its proper divisors (2725150511969).

21203000322031 is a wasteful number, since it uses less digits than its factorization.

21203000322031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66467085689.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21203000322031 its reverse (13022300030212), we get a palindrome (34225300352243).

The spelling of 21203000322031 in words is "twenty-one trillion, two hundred three billion, three hundred twenty-two thousand, thirty-one".