1023515154255 has 64 divisors (see below), whose sum is σ = 1911354094080. Its totient is φ = 462424204800.

The previous prime is 1023515154163. The next prime is 1023515154271. The reversal of 1023515154255 is 5524515153201.

It is not a de Polignac number, because 1023515154255 - 2¹⁴ = 1023515137871 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2484832 + ... + 2867301.

It is an arithmetic number, because the mean of its divisors is an integer number (29864907720).

Almost surely, 2^{1023515154255} is an apocalyptic number.

1023515154255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1023515154255 is a deficient number, since it is larger than the sum of its proper divisors (887838939825).

1023515154255 is a wasteful number, since it uses less digits than its factorization.

1023515154255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352232.

The product of its (nonzero) digits is 150000, while the sum is 39.

The spelling of 1023515154255 in words is "one trillion, twenty-three billion, five hundred fifteen million, one hundred fifty-four thousand, two hundred fifty-five".