1020123115299 has 12 divisors (see below), whose sum is σ = 1497667088112. Its totient is φ = 668933190000.

The previous prime is 1020123115261. The next prime is 1020123115303. The reversal of 1020123115299 is 9925113210201.

1020123115299 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 123 + 1 + 1 + 529 + 9 = 666.

1020123115299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020123115299 - 2¹⁷ = 1020122984227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020123115199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 929073327 + ... + 929074424.

It is an arithmetic number, because the mean of its divisors is an integer number (124805590676).

Almost surely, 2^{1020123115299} is an apocalyptic number.

1020123115299 is a deficient number, since it is larger than the sum of its proper divisors (477543972813).

1020123115299 is a wasteful number, since it uses less digits than its factorization.

1020123115299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858147818 (or 1858147815 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The spelling of 1020123115299 in words is "one trillion, twenty billion, one hundred twenty-three million, one hundred fifteen thousand, two hundred ninety-nine".