1011123423412 has 24 divisors (see below), whose sum is σ = 1885959875520. Its totient is φ = 472671638400.

The previous prime is 1011123423311. The next prime is 1011123423419. The reversal of 1011123423412 is 2143243211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011123423419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49226362 + ... + 49246897.

It is an arithmetic number, because the mean of its divisors is an integer number (78581661480).

Almost surely, 2^{1011123423412} is an apocalyptic number.

It is an amenable number.

1011123423412 is a deficient number, since it is larger than the sum of its proper divisors (874836452108).

1011123423412 is a wasteful number, since it uses less digits than its factorization.

1011123423412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98473431 (or 98473429 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1011123423412 its reverse (2143243211101), we get a palindrome (3154366634513).

The spelling of 1011123423412 in words is "one trillion, eleven billion, one hundred twenty-three million, four hundred twenty-three thousand, four hundred twelve".