1013541421 has 2 divisors, whose sum is σ = 1013541422. Its totient is φ = 1013541420.

The previous prime is 1013541371. The next prime is 1013541449. The reversal of 1013541421 is 1241453101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 687016521 + 326524900 = 26211^2 + 18070^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013541421 - 2¹⁹ = 1013017133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1013541392 and 1013541401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013541461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506770710 + 506770711.

It is an arithmetic number, because the mean of its divisors is an integer number (506770711).

Almost surely, 2^1013541421 is an apocalyptic number.

It is an amenable number.

1013541421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013541421 is an equidigital number, since it uses as much as digits as its factorization.

1013541421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1013541421 is about 31836.1652998598. The cubic root of 1013541421 is about 1004.4935844535.

Adding to 1013541421 its reverse (1241453101), we get a palindrome (2254994522).

The spelling of 1013541421 in words is "one billion, thirteen million, five hundred forty-one thousand, four hundred twenty-one".