1023420501413 has 4 divisors (see below), whose sum is σ = 1023423837120. Its totient is φ = 1023417165708.

The previous prime is 1023420501289. The next prime is 1023420501437. The reversal of 1023420501413 is 3141050243201.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 1023420501413 - 2¹⁴ = 1023420485029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023420501713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1155095 + ... + 1838772.

It is an arithmetic number, because the mean of its divisors is an integer number (255855959280).

Almost surely, 2^{1023420501413} is an apocalyptic number.

It is an amenable number.

1023420501413 is a deficient number, since it is larger than the sum of its proper divisors (3335707).

1023420501413 is an equidigital number, since it uses as much as digits as its factorization.

1023420501413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335706.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1023420501413 its reverse (3141050243201), we get a palindrome (4164470744614).

The spelling of 1023420501413 in words is "one trillion, twenty-three billion, four hundred twenty million, five hundred one thousand, four hundred thirteen".