2031061136 has 40 divisors (see below), whose sum is σ = 4266018624. Its totient is φ = 931190400.

The previous prime is 2031061133. The next prime is 2031061159. The reversal of 2031061136 is 6311601302.

It is a happy number.

It is a super-2 number, since 2×2031061136² = 8250418676339220992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2031061133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926 + ... + 63741.

Almost surely, 2^2031061136 is an apocalyptic number.

2031061136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031061136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2133009312).

2031061136 is an abundant number, since it is smaller than the sum of its proper divisors (2234957488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031061136 is a wasteful number, since it uses less digits than its factorization.

2031061136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64839 (or 64833 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2031061136 is about 45067.2956366366. The cubic root of 2031061136 is about 1266.4100024125.

Adding to 2031061136 its reverse (6311601302), we get a palindrome (8342662438).

The spelling of 2031061136 in words is "two billion, thirty-one million, sixty-one thousand, one hundred thirty-six".