1023432455253 has 8 divisors (see below), whose sum is σ = 1469544038368. Its totient is φ = 629804587824.

The previous prime is 1023432455249. The next prime is 1023432455293. The reversal of 1023432455253 is 3525542343201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1023432455253 - 2² = 1023432455249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 26241857827 = 1023432455253 / (1 + 0 + 2 + 3 + 4 + 3 + 2 + 4 + 5 + 5 + 2 + 5 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023432455203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13120928875 + ... + 13120928952.

It is an arithmetic number, because the mean of its divisors is an integer number (183693004796).

Almost surely, 2^{1023432455253} is an apocalyptic number.

1023432455253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1023432455253 is a deficient number, since it is larger than the sum of its proper divisors (446111583115).

1023432455253 is a wasteful number, since it uses less digits than its factorization.

1023432455253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26241857843.

The product of its (nonzero) digits is 432000, while the sum is 39.

Adding to 1023432455253 its reverse (3525542343201), we get a palindrome (4548974798454).

The spelling of 1023432455253 in words is "one trillion, twenty-three billion, four hundred thirty-two million, four hundred fifty-five thousand, two hundred fifty-three".