1201213240 has 16 divisors (see below), whose sum is σ = 2702729880. Its totient is φ = 480485280.

The previous prime is 1201213229. The next prime is 1201213243. The reversal of 1201213240 is 423121021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201213243) 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, 15015126 + ... + 15015205.

Almost surely, 2^1201213240 is an apocalyptic number.

1201213240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201213240 is an abundant number, since it is smaller than the sum of its proper divisors (1501516640).

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

1201213240 is a wasteful number, since it uses less digits than its factorization.

1201213240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30030342 (or 30030338 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1201213240 is about 34658.5233384228. The cubic root of 1201213240 is about 1063.0165763025.

Adding to 1201213240 its reverse (423121021), we get a palindrome (1624334261).

It can be divided in two parts, 12012 and 13240, that added together give a palindrome (25252).

The spelling of 1201213240 in words is "one billion, two hundred one million, two hundred thirteen thousand, two hundred forty".