1231000201112 has 64 divisors (see below), whose sum is σ = 2679884416800. Its totient is φ = 523902320640.

The previous prime is 1231000201091. The next prime is 1231000201153. The reversal of 1231000201112 is 2111020001321.

It is a super-2 number, since 2×1231000201112² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 1843037 + ... + 2420492.

Almost surely, 2^{1231000201112} is an apocalyptic number.

It is an amenable number.

1231000201112 is an abundant number, since it is smaller than the sum of its proper divisors (1448884215688).

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

1231000201112 is a wasteful number, since it uses less digits than its factorization.

1231000201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4263756 (or 4263752 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1231000201112 its reverse (2111020001321), we get a palindrome (3342020202433).

The spelling of 1231000201112 in words is "one trillion, two hundred thirty-one billion, two hundred one thousand, one hundred twelve".