20151013011 has 8 divisors (see below), whose sum is σ = 27114513360. Its totient is φ = 13310760672.

The previous prime is 20151012983. The next prime is 20151013033. The reversal of 20151013011 is 11031015102.

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

It is not a de Polignac number, because 20151013011 - 2¹⁰ = 20151011987 is a prime.

It is a super-2 number, since 2×20151013011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20151013411) 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, 30811620 + ... + 30812273.

It is an arithmetic number, because the mean of its divisors is an integer number (3389314170).

Almost surely, 2^20151013011 is an apocalyptic number.

20151013011 is a deficient number, since it is larger than the sum of its proper divisors (6963500349).

20151013011 is a wasteful number, since it uses less digits than its factorization.

20151013011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61624005.

The product of its (nonzero) digits is 30, while the sum is 15.

Adding to 20151013011 its reverse (11031015102), we get a palindrome (31182028113).

The spelling of 20151013011 in words is "twenty billion, one hundred fifty-one million, thirteen thousand, eleven".