1023127028905 has 16 divisors (see below), whose sum is σ = 1322426128320. Its totient is φ = 757389503808.

The previous prime is 1023127028893. The next prime is 1023127028927. The reversal of 1023127028905 is 5098207213201.

It is a cyclic number.

It is not a de Polignac number, because 1023127028905 - 2¹⁷ = 1023126897833 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, 125225662 + ... + 125233831.

It is an arithmetic number, because the mean of its divisors is an integer number (82651633020).

Almost surely, 2^{1023127028905} is an apocalyptic number.

It is an amenable number.

1023127028905 is a deficient number, since it is larger than the sum of its proper divisors (299299099415).

1023127028905 is a wasteful number, since it uses less digits than its factorization.

1023127028905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250459560.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 1023127028905 in words is "one trillion, twenty-three billion, one hundred twenty-seven million, twenty-eight thousand, nine hundred five".