103012020123 has 16 divisors (see below), whose sum is σ = 141046703616. Its totient is φ = 66842154720.

The previous prime is 103012020103. The next prime is 103012020151. The reversal of 103012020123 is 321020210301.

It is not a de Polignac number, because 103012020123 - 2¹³ = 103012011931 is a prime.

It is a super-2 number, since 2×103012020123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103012020103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1992661 + ... + 2043702.

It is an arithmetic number, because the mean of its divisors is an integer number (8815418976).

Almost surely, 2^103012020123 is an apocalyptic number.

103012020123 is a deficient number, since it is larger than the sum of its proper divisors (38034683493).

103012020123 is a wasteful number, since it uses less digits than its factorization.

103012020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036594.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 103012020123 its reverse (321020210301), we get a palindrome (424032230424).

The spelling of 103012020123 in words is "one hundred three billion, twelve million, twenty thousand, one hundred twenty-three".