29121301071 has 6 divisors (see below), whose sum is σ = 42064101560. Its totient is φ = 19414200708.

The previous prime is 29121301049. The next prime is 29121301073. The reversal of 29121301071 is 17010312192.

29121301071 is a `hidden beast` number, since 291 + 2 + 1 + 301 + 0 + 71 = 666.

It is not a de Polignac number, because 29121301071 - 2⁵ = 29121301039 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 (29121301073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1617850051 + ... + 1617850068.

Almost surely, 2^29121301071 is an apocalyptic number.

29121301071 is a deficient number, since it is larger than the sum of its proper divisors (12942800489).

29121301071 is a wasteful number, since it uses less digits than its factorization.

29121301071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235700125 (or 3235700122 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The spelling of 29121301071 in words is "twenty-nine billion, one hundred twenty-one million, three hundred one thousand, seventy-one".