1023123132012 has 48 divisors (see below), whose sum is σ = 2447072337024. Its totient is φ = 332510928000.

The previous prime is 1023123131957. The next prime is 1023123132037. The reversal of 1023123132012 is 2102313213201.

It is a self number, because there is not a number n which added to its sum of digits gives 1023123132012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111087 + ... + 1434777.

It is an arithmetic number, because the mean of its divisors is an integer number (50980673688).

Almost surely, 2^{1023123132012} is an apocalyptic number.

1023123132012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023123132012 is an abundant number, since it is smaller than the sum of its proper divisors (1423949205012).

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

1023123132012 is a wasteful number, since it uses less digits than its factorization.

1023123132012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325310 (or 1325308 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1023123132012 its reverse (2102313213201), we get a palindrome (3125436345213).

The spelling of 1023123132012 in words is "one trillion, twenty-three billion, one hundred twenty-three million, one hundred thirty-two thousand, twelve".