29153157121 has 4 divisors (see below), whose sum is σ = 31803444144. Its totient is φ = 26502870100.

The previous prime is 29153157119. The next prime is 29153157151. The reversal of 29153157121 is 12175135192.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29153157121 - 2¹ = 29153157119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29153157151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325143495 + ... + 1325143516.

It is an arithmetic number, because the mean of its divisors is an integer number (7950861036).

Almost surely, 2^29153157121 is an apocalyptic number.

It is an amenable number.

29153157121 is a deficient number, since it is larger than the sum of its proper divisors (2650287023).

29153157121 is a wasteful number, since it uses less digits than its factorization.

29153157121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650287022.

The product of its digits is 18900, while the sum is 37.

The spelling of 29153157121 in words is "twenty-nine billion, one hundred fifty-three million, one hundred fifty-seven thousand, one hundred twenty-one".