1010431421 has 2 divisors, whose sum is σ = 1010431422. Its totient is φ = 1010431420.

The previous prime is 1010431399. The next prime is 1010431439. The reversal of 1010431421 is 1241340101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 520296100 + 490135321 = 22810^2 + 22139^2 .

It is an emirp because it is prime and its reverse (1241340101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010431421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1010431421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010431441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505215710 + 505215711.

It is an arithmetic number, because the mean of its divisors is an integer number (505215711).

Almost surely, 2^1010431421 is an apocalyptic number.

It is an amenable number.

1010431421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010431421 is an equidigital number, since it uses as much as digits as its factorization.

1010431421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1010431421 is about 31787.2839512910. The cubic root of 1010431421 is about 1003.4651194122.

Adding to 1010431421 its reverse (1241340101), we get a palindrome (2251771522).

The spelling of 1010431421 in words is "one billion, ten million, four hundred thirty-one thousand, four hundred twenty-one".