1013012423021 has 2 divisors, whose sum is σ = 1013012423022. Its totient is φ = 1013012423020.

The previous prime is 1013012422967. The next prime is 1013012423053. The reversal of 1013012423021 is 1203242103101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 891776146921 + 121236276100 = 944339^2 + 348190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013012423021 - 2⁶ = 1013012422957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1013012422984 and 1013012423002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013012423081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506506211510 + 506506211511.

It is an arithmetic number, because the mean of its divisors is an integer number (506506211511).

Almost surely, 2^{1013012423021} is an apocalyptic number.

It is an amenable number.

1013012423021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013012423021 is an equidigital number, since it uses as much as digits as its factorization.

1013012423021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1013012423021 its reverse (1203242103101), we get a palindrome (2216254526122).

The spelling of 1013012423021 in words is "one trillion, thirteen billion, twelve million, four hundred twenty-three thousand, twenty-one".