31423142131 has 8 divisors (see below), whose sum is σ = 31470566400. Its totient is φ = 31375748040.

The previous prime is 31423142089. The next prime is 31423142197. The reversal of 31423142131 is 13124132413.

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

It is a cyclic number.

It is not a de Polignac number, because 31423142131 - 2⁹ = 31423141619 is a prime.

It is a super-2 number, since 2×31423142131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31423142096 and 31423142105.

It is not an unprimeable number, because it can be changed into a prime (31423112131) 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, 2835880 + ... + 2846938.

It is an arithmetic number, because the mean of its divisors is an integer number (3933820800).

Almost surely, 2^31423142131 is an apocalyptic number.

31423142131 is a deficient number, since it is larger than the sum of its proper divisors (47424269).

31423142131 is a wasteful number, since it uses less digits than its factorization.

31423142131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15089.

The product of its digits is 1728, while the sum is 25.

Adding to 31423142131 its reverse (13124132413), we get a palindrome (44547274544).

The spelling of 31423142131 in words is "thirty-one billion, four hundred twenty-three million, one hundred forty-two thousand, one hundred thirty-one".