20311422030421 has 8 divisors (see below), whose sum is σ = 20341799213400. Its totient is φ = 20281063157760.

The previous prime is 20311422030377. The next prime is 20311422030437. The reversal of 20311422030421 is 12403022411302.

It can be written as a sum of positive squares in 4 ways, for example, as 424406646225 + 19887015384196 = 651465^2 + 4459486^2 .

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 20311422030421 - 2²⁷ = 20311287812693 is a prime.

It is a super-3 number, since 3×20311422030421³ (a number of 41 digits) contains 333 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 (20311422030461) 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, 2356540 + ... + 6795301.

It is an arithmetic number, because the mean of its divisors is an integer number (2542724901675).

Almost surely, 2^{20311422030421} is an apocalyptic number.

It is an amenable number.

20311422030421 is a deficient number, since it is larger than the sum of its proper divisors (30377182979).

20311422030421 is an equidigital number, since it uses as much as digits as its factorization.

20311422030421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9155159.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20311422030421 its reverse (12403022411302), we get a palindrome (32714444441723).

The spelling of 20311422030421 in words is "twenty trillion, three hundred eleven billion, four hundred twenty-two million, thirty thousand, four hundred twenty-one".