1023121242112 has 24 divisors (see below), whose sum is σ = 2045742917400. Its totient is φ = 511560620032.

The previous prime is 1023121242107. The next prime is 1023121242161. The reversal of 1023121242112 is 2112421213201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249783412 + ... + 249787507.

It is an arithmetic number, because the mean of its divisors is an integer number (85239288225).

Almost surely, 2^{1023121242112} is an apocalyptic number.

It is an amenable number.

1023121242112 is a deficient number, since it is larger than the sum of its proper divisors (1022621675288).

1023121242112 is an frugal number, since it uses more digits than its factorization.

1023121242112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499570941 (or 499570921 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1023121242112 its reverse (2112421213201), we get a palindrome (3135542455313).

The spelling of 1023121242112 in words is "one trillion, twenty-three billion, one hundred twenty-one million, two hundred forty-two thousand, one hundred twelve".