1201233142 has 8 divisors (see below), whose sum is σ = 1802023776. Its totient is φ = 600558552.

The previous prime is 1201233139. The next prime is 1201233179. The reversal of 1201233142 is 2413321021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1201233142² = 2885922122878384328, which 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 3 ways as a sum of consecutive naturals, for example, 4708 + ... + 49240.

It is an arithmetic number, because the mean of its divisors is an integer number (225252972).

Almost surely, 2^1201233142 is an apocalyptic number.

1201233142 is a deficient number, since it is larger than the sum of its proper divisors (600790634).

1201233142 is a wasteful number, since it uses less digits than its factorization.

1201233142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58022.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1201233142 is about 34658.8104527550. The cubic root of 1201233142 is about 1063.0224470445.

Adding to 1201233142 its reverse (2413321021), we get a palindrome (3614554163).

It can be divided in two parts, 12012 and 33142, that added together give a palindrome (45154).

The spelling of 1201233142 in words is "one billion, two hundred one million, two hundred thirty-three thousand, one hundred forty-two".