20012113252 has 6 divisors (see below), whose sum is σ = 35021198198. Its totient is φ = 10006056624.

The previous prime is 20012113229. The next prime is 20012113301. The reversal of 20012113252 is 25231121002.

It can be written as a sum of positive squares in only one way, i.e., 17501702436 + 2510410816 = 132294^2 + 50104^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2501514153 + ... + 2501514160.

Almost surely, 2^20012113252 is an apocalyptic number.

It is an amenable number.

20012113252 is a deficient number, since it is larger than the sum of its proper divisors (15009084946).

20012113252 is a wasteful number, since it uses less digits than its factorization.

20012113252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003028317 (or 5003028315 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 20012113252 its reverse (25231121002), we get a palindrome (45243234254).

The spelling of 20012113252 in words is "twenty billion, twelve million, one hundred thirteen thousand, two hundred fifty-two".