1012143213 has 12 divisors (see below), whose sum is σ = 1464005088. Its totient is φ = 673829640.

The previous prime is 1012143191. The next prime is 1012143217. The reversal of 1012143213 is 3123412101.

It is a de Polignac number, because none of the positive numbers 2^k-1012143213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012143217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70803 + ... + 83888.

It is an arithmetic number, because the mean of its divisors is an integer number (122000424).

Almost surely, 2^1012143213 is an apocalyptic number.

It is an amenable number.

1012143213 is a deficient number, since it is larger than the sum of its proper divisors (451861875).

1012143213 is a wasteful number, since it uses less digits than its factorization.

1012143213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155424 (or 155421 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1012143213 is about 31814.1982925863. The cubic root of 1012143213 is about 1004.0314631310.

Adding to 1012143213 its reverse (3123412101), we get a palindrome (4135555314).

The spelling of 1012143213 in words is "one billion, twelve million, one hundred forty-three thousand, two hundred thirteen".