1201034142 has 120 divisors (see below), whose sum is σ = 3381074928. Its totient is φ = 311921280.

The previous prime is 1201034129. The next prime is 1201034221. The reversal of 1201034142 is 2414301021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 132838 + ... + 141590.

Almost surely, 2^1201034142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201034142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1690537464).

1201034142 is an abundant number, since it is smaller than the sum of its proper divisors (2180040786).

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

1201034142 is a wasteful number, since it uses less digits than its factorization.

1201034142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8796 (or 8776 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1201034142 is about 34655.9394909444. The cubic root of 1201034142 is about 1062.9637426064.

Adding to 1201034142 its reverse (2414301021), we get a palindrome (3615335163).

The spelling of 1201034142 in words is "one billion, two hundred one million, thirty-four thousand, one hundred forty-two".