201540031345 has 16 divisors (see below), whose sum is σ = 243427742208. Its totient is φ = 160179933760.

The previous prime is 201540031229. The next prime is 201540031351. The reversal of 201540031345 is 543130045102.

It is not a de Polignac number, because 201540031345 - 2¹⁷ = 201539900273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1503000 + ... + 1631590.

It is an arithmetic number, because the mean of its divisors is an integer number (15214233888).

Almost surely, 2^201540031345 is an apocalyptic number.

It is an amenable number.

201540031345 is a deficient number, since it is larger than the sum of its proper divisors (41887710863).

201540031345 is a wasteful number, since it uses less digits than its factorization.

201540031345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130640.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 201540031345 its reverse (543130045102), we get a palindrome (744670076447).

The spelling of 201540031345 in words is "two hundred one billion, five hundred forty million, thirty-one thousand, three hundred forty-five".