1020123012 has 48 divisors (see below), whose sum is σ = 2567884032. Its totient is φ = 313996800.

The previous prime is 1020123001. The next prime is 1020123017. The reversal of 1020123012 is 2103210201.

It is a super-2 number, since 2×1020123012² = 2081301919223904288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1020123017) 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 15 ways as a sum of consecutive naturals, for example, 36364 + ... + 57987.

It is an arithmetic number, because the mean of its divisors is an integer number (53497584).

Almost surely, 2^1020123012 is an apocalyptic number.

1020123012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020123012 is an abundant number, since it is smaller than the sum of its proper divisors (1547761020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020123012 is a wasteful number, since it uses less digits than its factorization.

1020123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94428 (or 94426 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1020123012 is about 31939.3646148448. The cubic root of 1020123012 is about 1006.6631741664.

Adding to 1020123012 its reverse (2103210201), we get a palindrome (3123333213).

The spelling of 1020123012 in words is "one billion, twenty million, one hundred twenty-three thousand, twelve".