31420131141 has 16 divisors (see below), whose sum is σ = 48484352000. Its totient is φ = 17727089328.

The previous prime is 31420131133. The next prime is 31420131143. The reversal of 31420131141 is 14113102413.

It is not a de Polignac number, because 31420131141 - 2³ = 31420131133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420131143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9467941 + ... + 9471258.

It is an arithmetic number, because the mean of its divisors is an integer number (3030272000).

Almost surely, 2^31420131141 is an apocalyptic number.

It is an amenable number.

31420131141 is a deficient number, since it is larger than the sum of its proper divisors (17064220859).

31420131141 is a wasteful number, since it uses less digits than its factorization.

31420131141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18939288.

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

Adding to 31420131141 its reverse (14113102413), we get a palindrome (45533233554).

The spelling of 31420131141 in words is "thirty-one billion, four hundred twenty million, one hundred thirty-one thousand, one hundred forty-one".