29988359121 has 24 divisors (see below), whose sum is σ = 48116445120. Its totient is φ = 16545299232.

The previous prime is 29988359111. The next prime is 29988359153. The reversal of 29988359121 is 12195388992.

It is not a de Polignac number, because 29988359121 - 2¹⁰ = 29988358097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29988359111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3513021 + ... + 3521546.

It is an arithmetic number, because the mean of its divisors is an integer number (2004851880).

Almost surely, 2^29988359121 is an apocalyptic number.

29988359121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

29988359121 is a deficient number, since it is larger than the sum of its proper divisors (18128085999).

29988359121 is a wasteful number, since it uses less digits than its factorization.

29988359121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7034613 (or 7034606 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 57.

The spelling of 29988359121 in words is "twenty-nine billion, nine hundred eighty-eight million, three hundred fifty-nine thousand, one hundred twenty-one".