10312012394 has 8 divisors (see below), whose sum is σ = 15472848420. Its totient is φ = 5154396256.

The previous prime is 10312012351. The next prime is 10312012421. The reversal of 10312012394 is 49321021301.

It can be written as a sum of positive squares in 2 ways, for example, as 8788125025 + 1523887369 = 93745^2 + 39037^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10312012394² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796949 + ... + 809784.

Almost surely, 2^10312012394 is an apocalyptic number.

10312012394 is a deficient number, since it is larger than the sum of its proper divisors (5160836026).

10312012394 is a wasteful number, since it uses less digits than its factorization.

10312012394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609944.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 10312012394 its reverse (49321021301), we get a palindrome (59633033695).

The spelling of 10312012394 in words is "ten billion, three hundred twelve million, twelve thousand, three hundred ninety-four".