1020253413 has 4 divisors (see below), whose sum is σ = 1360337888. Its totient is φ = 680168940.

The previous prime is 1020253411. The next prime is 1020253417. The reversal of 1020253413 is 3143520201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1020253413 - 2¹ = 1020253411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020253413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020253411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170042233 + ... + 170042238.

It is an arithmetic number, because the mean of its divisors is an integer number (340084472).

Almost surely, 2^1020253413 is an apocalyptic number.

It is an amenable number.

1020253413 is a deficient number, since it is larger than the sum of its proper divisors (340084475).

1020253413 is an equidigital number, since it uses as much as digits as its factorization.

1020253413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340084474.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1020253413 is about 31941.4059333649. The cubic root of 1020253413 is about 1006.7060658210.

Adding to 1020253413 its reverse (3143520201), we get a palindrome (4163773614).

The spelling of 1020253413 in words is "one billion, twenty million, two hundred fifty-three thousand, four hundred thirteen".