1201231012 has 12 divisors (see below), whose sum is σ = 2121440860. Its totient is φ = 595105056.

The previous prime is 1201230967. The next prime is 1201231013. The reversal of 1201231012 is 2101321021.

It can be written as a sum of positive squares in 2 ways, for example, as 911073856 + 290157156 = 30184^2 + 17034^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201230983 and 1201231001.

It is not an unprimeable number, because it can be changed into a prime (1201231013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377123 + ... + 1377994.

Almost surely, 2^1201231012 is an apocalyptic number.

It is an amenable number.

1201231012 is a deficient number, since it is larger than the sum of its proper divisors (920209848).

1201231012 is a wasteful number, since it uses less digits than its factorization.

1201231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755230 (or 2755228 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1201231012 is about 34658.7797246239. The cubic root of 1201231012 is about 1063.0218187348.

Adding to 1201231012 its reverse (2101321021), we get a palindrome (3302552033).

Subtracting 1201231012 from its reverse (2101321021), we obtain a palindrome (900090009).

The spelling of 1201231012 in words is "one billion, two hundred one million, two hundred thirty-one thousand, twelve".