1213142032 has 80 divisors (see below), whose sum is σ = 2550854592. Its totient is φ = 556830720.

The previous prime is 1213142023. The next prime is 1213142041. The reversal of 1213142032 is 2302413121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1213142023) and next prime (1213142041).

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, 2124307 + ... + 2124877.

Almost surely, 2^1213142032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213142032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1275427296).

1213142032 is an abundant number, since it is smaller than the sum of its proper divisors (1337712560).

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

1213142032 is a wasteful number, since it uses less digits than its factorization.

1213142032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776 (or 770 counting only the distinct ones).

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

The square root of 1213142032 is about 34830.1885151373. The cubic root of 1213142032 is about 1066.5237966634.

Adding to 1213142032 its reverse (2302413121), we get a palindrome (3515555153).

The spelling of 1213142032 in words is "one billion, two hundred thirteen million, one hundred forty-two thousand, thirty-two".