2031214421 has 2 divisors, whose sum is σ = 2031214422. Its totient is φ = 2031214420.

The previous prime is 2031214403. The next prime is 2031214447. The reversal of 2031214421 is 1244121302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1976247025 + 54967396 = 44455^2 + 7414^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031214421 - 2²² = 2027020117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2031214393 and 2031214402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031214481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015607210 + 1015607211.

It is an arithmetic number, because the mean of its divisors is an integer number (1015607211).

Almost surely, 2^2031214421 is an apocalyptic number.

It is an amenable number.

2031214421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031214421 is an equidigital number, since it uses as much as digits as its factorization.

2031214421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2031214421 is about 45068.9962280058. The cubic root of 2031214421 is about 1266.4418604349.

Adding to 2031214421 its reverse (1244121302), we get a palindrome (3275335723).

The spelling of 2031214421 in words is "two billion, thirty-one million, two hundred fourteen thousand, four hundred twenty-one".