1023043424251 has 4 divisors (see below), whose sum is σ = 1024450637392. Its totient is φ = 1021636211112.

The previous prime is 1023043424243. The next prime is 1023043424257. The reversal of 1023043424251 is 1524243403201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1023043424251 - 2³ = 1023043424243 is a prime.

It is a super-2 number, since 2×1023043424251² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023043424257) 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, 703605480 + ... + 703606933.

It is an arithmetic number, because the mean of its divisors is an integer number (256112659348).

Almost surely, 2^{1023043424251} is an apocalyptic number.

1023043424251 is a deficient number, since it is larger than the sum of its proper divisors (1407213141).

1023043424251 is an equidigital number, since it uses as much as digits as its factorization.

1023043424251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407213140.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 1023043424251 its reverse (1524243403201), we get a palindrome (2547286827452).

The spelling of 1023043424251 in words is "one trillion, twenty-three billion, forty-three million, four hundred twenty-four thousand, two hundred fifty-one".