1213001032 has 8 divisors (see below), whose sum is σ = 2274376950. Its totient is φ = 606500512.

The previous prime is 1213000961. The next prime is 1213001033. The reversal of 1213001032 is 2301003121.

It can be written as a sum of positive squares in only one way, i.e., 1089924196 + 123076836 = 33014^2 + 11094^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1213001033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75812557 + ... + 75812572.

Almost surely, 2^1213001032 is an apocalyptic number.

It is an amenable number.

1213001032 is a deficient number, since it is larger than the sum of its proper divisors (1061375918).

1213001032 is a wasteful number, since it uses less digits than its factorization.

1213001032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151625135 (or 151625131 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1213001032 is about 34828.1643501348. The cubic root of 1213001032 is about 1066.4824754007.

Adding to 1213001032 its reverse (2301003121), we get a palindrome (3514004153).

The spelling of 1213001032 in words is "one billion, two hundred thirteen million, one thousand, thirty-two".