1213140032 has 28 divisors (see below), whose sum is σ = 2592505356. Its totient is φ = 559910400.

The previous prime is 1213140031. The next prime is 1213140073. The reversal of 1213140032 is 2300413121.

It can be written as a sum of positive squares in 2 ways, for example, as 96510976 + 1116629056 = 9824^2 + 33416^2 .

It is a super-2 number, since 2×1213140032² = 2943417474481922048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1213140031) 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, 728219 + ... + 729882.

It is an arithmetic number, because the mean of its divisors is an integer number (92589477).

Almost surely, 2^1213140032 is an apocalyptic number.

It is an amenable number.

1213140032 is an abundant number, since it is smaller than the sum of its proper divisors (1379365324).

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

1213140032 is a wasteful number, since it uses less digits than its factorization.

1213140032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458126 (or 1458116 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1213140032 is about 34830.1598043994. The cubic root of 1213140032 is about 1066.5232105686.

Adding to 1213140032 its reverse (2300413121), we get a palindrome (3513553153).

The spelling of 1213140032 in words is "one billion, two hundred thirteen million, one hundred forty thousand, thirty-two".