20101212013 has 8 divisors (see below), whose sum is σ = 21285875520. Its totient is φ = 18929219040.

The previous prime is 20101211971. The next prime is 20101212023. The reversal of 20101212013 is 31021210102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20101212013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20101211984 and 20101212002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101212023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3164368 + ... + 3170713.

It is an arithmetic number, because the mean of its divisors is an integer number (2660734440).

Almost surely, 2^20101212013 is an apocalyptic number.

It is an amenable number.

20101212013 is a deficient number, since it is larger than the sum of its proper divisors (1184663507).

20101212013 is a wasteful number, since it uses less digits than its factorization.

20101212013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6335267.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20101212013 its reverse (31021210102), we get a palindrome (51122422115).

The spelling of 20101212013 in words is "twenty billion, one hundred one million, two hundred twelve thousand, thirteen".