1023145354555 has 16 divisors (see below), whose sum is σ = 1270455321600. Its totient is φ = 790077635200.

The previous prime is 1023145354549. The next prime is 1023145354589. The reversal of 1023145354555 is 5554535413201.

It is not a de Polignac number, because 1023145354555 - 2²¹ = 1023143257403 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416635 + ... + 1489924.

It is an arithmetic number, because the mean of its divisors is an integer number (79403457600).

Almost surely, 2^{1023145354555} is an apocalyptic number.

1023145354555 is a deficient number, since it is larger than the sum of its proper divisors (247309967045).

1023145354555 is a wasteful number, since it uses less digits than its factorization.

1023145354555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910294.

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 1023145354555 in words is "one trillion, twenty-three billion, one hundred forty-five million, three hundred fifty-four thousand, five hundred fifty-five".