20131011151 has 4 divisors (see below), whose sum is σ = 20431474072. Its totient is φ = 19830548232.

The previous prime is 20131011143. The next prime is 20131011163. The reversal of 20131011151 is 15111013102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20131011151 - 2³ = 20131011143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131011181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150231360 + ... + 150231493.

It is an arithmetic number, because the mean of its divisors is an integer number (5107868518).

Almost surely, 2^20131011151 is an apocalyptic number.

20131011151 is a deficient number, since it is larger than the sum of its proper divisors (300462921).

20131011151 is an equidigital number, since it uses as much as digits as its factorization.

20131011151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300462920.

The product of its (nonzero) digits is 30, while the sum is 16.

Adding to 20131011151 its reverse (15111013102), we get a palindrome (35242024253).

The spelling of 20131011151 in words is "twenty billion, one hundred thirty-one million, eleven thousand, one hundred fifty-one".