1023411031421 has 2 divisors, whose sum is σ = 1023411031422. Its totient is φ = 1023411031420.

The previous prime is 1023411031399. The next prime is 1023411031441. The reversal of 1023411031421 is 1241301143201.

1023411031421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 544664664196 + 478746367225 = 738014^2 + 691915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023411031421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023411031441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511705515710 + 511705515711.

It is an arithmetic number, because the mean of its divisors is an integer number (511705515711).

Almost surely, 2^{1023411031421} is an apocalyptic number.

It is an amenable number.

1023411031421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023411031421 is an equidigital number, since it uses as much as digits as its factorization.

1023411031421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1023411031421 its reverse (1241301143201), we get a palindrome (2264712174622).

The spelling of 1023411031421 in words is "one trillion, twenty-three billion, four hundred eleven million, thirty-one thousand, four hundred twenty-one".