1023112112455 has 16 divisors (see below), whose sum is σ = 1261206943200. Its totient is φ = 796184940672.

The previous prime is 1023112112453. The next prime is 1023112112467. The reversal of 1023112112455 is 5542112113201.

It is a cyclic number.

It is not a de Polignac number, because 1023112112455 - 2¹ = 1023112112453 is a prime.

It is a super-2 number, since 2×1023112112455² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023112112453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171396 + ... + 1440694.

It is an arithmetic number, because the mean of its divisors is an integer number (78825433950).

Almost surely, 2^{1023112112455} is an apocalyptic number.

1023112112455 is a deficient number, since it is larger than the sum of its proper divisors (238094830745).

1023112112455 is a wasteful number, since it uses less digits than its factorization.

1023112112455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273698.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 1023112112455 its reverse (5542112113201), we get a palindrome (6565224225656).

The spelling of 1023112112455 in words is "one trillion, twenty-three billion, one hundred twelve million, one hundred twelve thousand, four hundred fifty-five".