2011439159831 has 4 divisors (see below), whose sum is σ = 2026121197632. Its totient is φ = 1996757122032.

The previous prime is 2011439159771. The next prime is 2011439159839. The reversal of 2011439159831 is 1389519341102.

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 2011439159831 - 2⁶ = 2011439159767 is a prime.

It is a super-2 number, since 2×2011439159831² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011439159839) 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, 7341018695 + ... + 7341018968.

It is an arithmetic number, because the mean of its divisors is an integer number (506530299408).

Almost surely, 2^{2011439159831} is an apocalyptic number.

2011439159831 is a deficient number, since it is larger than the sum of its proper divisors (14682037801).

2011439159831 is a wasteful number, since it uses less digits than its factorization.

2011439159831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14682037800.

The product of its (nonzero) digits is 233280, while the sum is 47.

The spelling of 2011439159831 in words is "two trillion, eleven billion, four hundred thirty-nine million, one hundred fifty-nine thousand, eight hundred thirty-one".