29143187131 has 2 divisors, whose sum is σ = 29143187132. Its totient is φ = 29143187130.

The previous prime is 29143187119. The next prime is 29143187173. The reversal of 29143187131 is 13178134192.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29143187131 - 2²¹ = 29141089979 is a prime.

It is a super-2 number, since 2×29143187131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (29143187831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14571593565 + 14571593566.

It is an arithmetic number, because the mean of its divisors is an integer number (14571593566).

Almost surely, 2^29143187131 is an apocalyptic number.

29143187131 is a deficient number, since it is larger than the sum of its proper divisors (1).

29143187131 is an equidigital number, since it uses as much as digits as its factorization.

29143187131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The spelling of 29143187131 in words is "twenty-nine billion, one hundred forty-three million, one hundred eighty-seven thousand, one hundred thirty-one".