31031142141 has 12 divisors (see below), whose sum is σ = 41413809632. Its totient is φ = 20667969168.

The previous prime is 31031142137. The next prime is 31031142143. The reversal of 31031142141 is 14124113013.

It is not a de Polignac number, because 31031142141 - 2² = 31031142137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31031142143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4889016 + ... + 4895358.

Almost surely, 2^31031142141 is an apocalyptic number.

It is an amenable number.

31031142141 is a deficient number, since it is larger than the sum of its proper divisors (10382667491).

31031142141 is an frugal number, since it uses more digits than its factorization.

31031142141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8900 (or 7623 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 31031142141 its reverse (14124113013), we get a palindrome (45155255154).

The spelling of 31031142141 in words is "thirty-one billion, thirty-one million, one hundred forty-two thousand, one hundred forty-one".