1023231054555 has 24 divisors (see below), whose sum is σ = 1839289403952. Its totient is φ = 545723228448.

The previous prime is 1023231054509. The next prime is 1023231054689. The reversal of 1023231054555 is 5554501323201.

1023231054555 is a `hidden beast` number, since 1 + 0 + 2 + 32 + 31 + 0 + 545 + 55 = 666.

It is not a de Polignac number, because 1023231054555 - 2¹² = 1023231050459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 421081524 + ... + 421083953.

It is an arithmetic number, because the mean of its divisors is an integer number (76637058498).

Almost surely, 2^{1023231054555} is an apocalyptic number.

1023231054555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1023231054555 is a deficient number, since it is larger than the sum of its proper divisors (816058349397).

1023231054555 is an frugal number, since it uses more digits than its factorization.

1023231054555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842165497 (or 842165485 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 1023231054555 its reverse (5554501323201), we get a palindrome (6577732377756).

The spelling of 1023231054555 in words is "one trillion, twenty-three billion, two hundred thirty-one million, fifty-four thousand, five hundred fifty-five".