2031140997 has 12 divisors (see below), whose sum is σ = 2935621260. Its totient is φ = 1353285888.

The previous prime is 2031140959. The next prime is 2031141019. The reversal of 2031140997 is 7990411302.

It can be written as a sum of positive squares in 2 ways, for example, as 1027138401 + 1004002596 = 32049^2 + 31686^2 .

It is not a de Polignac number, because 2031140997 - 2⁶ = 2031140933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031140497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51222 + ... + 81767.

It is an arithmetic number, because the mean of its divisors is an integer number (244635105).

Almost surely, 2^2031140997 is an apocalyptic number.

It is an amenable number.

2031140997 is a deficient number, since it is larger than the sum of its proper divisors (904480263).

2031140997 is a wasteful number, since it uses less digits than its factorization.

2031140997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134692 (or 134689 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 2031140997 is about 45068.1816473662. The cubic root of 2031140997 is about 1266.4266005414.

The spelling of 2031140997 in words is "two billion, thirty-one million, one hundred forty thousand, nine hundred ninety-seven".