1023112533451 has 4 divisors (see below), whose sum is σ = 1083295623672. Its totient is φ = 962929443232.

The previous prime is 1023112533439. The next prime is 1023112533481. The reversal of 1023112533451 is 1543352113201.

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 1023112533451 - 2⁵ = 1023112533419 is a prime.

It is a super-2 number, since 2×1023112533451² (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 (1023112533481) 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, 30091545085 + ... + 30091545118.

It is an arithmetic number, because the mean of its divisors is an integer number (270823905918).

Almost surely, 2^{1023112533451} is an apocalyptic number.

1023112533451 is a deficient number, since it is larger than the sum of its proper divisors (60183090221).

1023112533451 is an equidigital number, since it uses as much as digits as its factorization.

1023112533451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60183090220.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 1023112533451 its reverse (1543352113201), we get a palindrome (2566464646652).

The spelling of 1023112533451 in words is "one trillion, twenty-three billion, one hundred twelve million, five hundred thirty-three thousand, four hundred fifty-one".