1020123011139 has 8 divisors (see below), whose sum is σ = 1360299570000. Its totient is φ = 680014229856.

The previous prime is 1020123011087. The next prime is 1020123011203. The reversal of 1020123011139 is 9311103210201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020123011139 - 2⁸ = 1020123010883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020123015139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16909264 + ... + 16969485.

It is an arithmetic number, because the mean of its divisors is an integer number (170037446250).

Almost surely, 2^{1020123011139} is an apocalyptic number.

1020123011139 is a deficient number, since it is larger than the sum of its proper divisors (340176558861).

1020123011139 is a wasteful number, since it uses less digits than its factorization.

1020123011139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33888789.

The product of its (nonzero) digits is 324, while the sum is 24.

The spelling of 1020123011139 in words is "one trillion, twenty billion, one hundred twenty-three million, eleven thousand, one hundred thirty-nine".