31540203141 has 8 divisors (see below), whose sum is σ = 42087771264. Its totient is φ = 21009718560.

The previous prime is 31540203131. The next prime is 31540203187. The reversal of 31540203141 is 14130204513.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31540203141 - 2¹⁰ = 31540202117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31540203131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4266576 + ... + 4273961.

It is an arithmetic number, because the mean of its divisors is an integer number (5260971408).

Almost surely, 2^31540203141 is an apocalyptic number.

It is an amenable number.

31540203141 is a deficient number, since it is larger than the sum of its proper divisors (10547568123).

31540203141 is a wasteful number, since it uses less digits than its factorization.

31540203141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541771.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 31540203141 its reverse (14130204513), we get a palindrome (45670407654).

The spelling of 31540203141 in words is "thirty-one billion, five hundred forty million, two hundred three thousand, one hundred forty-one".