1023123012 has 48 divisors (see below), whose sum is σ = 2432566080. Its totient is φ = 334595968.

The previous prime is 1023123011. The next prime is 1023123043. The reversal of 1023123012 is 2103213201.

It is a junction number, because it is equal to n+sod(n) for n = 1023122982 and 1023123000.

It is not an unprimeable number, because it can be changed into a prime (1023123011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461218 + ... + 463430.

It is an arithmetic number, because the mean of its divisors is an integer number (50678460).

Almost surely, 2^1023123012 is an apocalyptic number.

1023123012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023123012 is an abundant number, since it is smaller than the sum of its proper divisors (1409443068).

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

1023123012 is a wasteful number, since it uses less digits than its factorization.

1023123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932 (or 2930 counting only the distinct ones).

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

The square root of 1023123012 is about 31986.2941273290. The cubic root of 1023123012 is about 1007.6490140757.

Adding to 1023123012 its reverse (2103213201), we get a palindrome (3126336213).

The spelling of 1023123012 in words is "one billion, twenty-three million, one hundred twenty-three thousand, twelve".