31141420 has 24 divisors (see below), whose sum is σ = 67166064. Its totient is φ = 12119616.

The previous prime is 31141403. The next prime is 31141441. The reversal of 31141420 is 2414113.

It is a junction number, because it is equal to n+sod(n) for n = 31141394 and 31141403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20302 + ... + 21781.

It is an arithmetic number, because the mean of its divisors is an integer number (2798586).

Almost surely, 2^31141420 is an apocalyptic number.

It is an amenable number.

31141420 is an abundant number, since it is smaller than the sum of its proper divisors (36024644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31141420 is a wasteful number, since it uses less digits than its factorization.

31141420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42129 (or 42127 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 31141420 is about 5580.4498026593. The cubic root of 31141420 is about 314.6150332026.

Adding to 31141420 its reverse (2414113), we get a palindrome (33555533).

The spelling of 31141420 in words is "thirty-one million, one hundred forty-one thousand, four hundred twenty".