1001012312 has 8 divisors (see below), whose sum is σ = 1876898100. Its totient is φ = 500506152.

The previous prime is 1001012303. The next prime is 1001012317. The reversal of 1001012312 is 2132101001.

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

It is a junction number, because it is equal to n+sod(n) for n = 1001012293 and 1001012302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001012317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62563262 + ... + 62563277.

Almost surely, 2^1001012312 is an apocalyptic number.

It is an amenable number.

1001012312 is a deficient number, since it is larger than the sum of its proper divisors (875885788).

1001012312 is a wasteful number, since it uses less digits than its factorization.

1001012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125126545 (or 125126541 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1001012312 is about 31638.7786110653. The cubic root of 1001012312 is about 1000.3373235334.

Adding to 1001012312 its reverse (2132101001), we get a palindrome (3133113313).

It can be divided in two parts, 10010 and 12312, that added together give a palindrome (22322).

The spelling of 1001012312 in words is "one billion, one million, twelve thousand, three hundred twelve".