20345031235151 has 8 divisors (see below), whose sum is σ = 23251751819904. Its totient is φ = 17438382538200.

The previous prime is 20345031235099. The next prime is 20345031235201. The reversal of 20345031235151 is 15153213054302.

It is a happy number.

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 20345031235151 - 2³⁴ = 20327851365967 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 (20345031235751) 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, 17364125 + ... + 18498726.

It is an arithmetic number, because the mean of its divisors is an integer number (2906468977488).

Almost surely, 2^{20345031235151} is an apocalyptic number.

20345031235151 is a deficient number, since it is larger than the sum of its proper divisors (2906720584753).

20345031235151 is an equidigital number, since it uses as much as digits as its factorization.

20345031235151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35943901.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 20345031235151 its reverse (15153213054302), we get a palindrome (35498244289453).

The spelling of 20345031235151 in words is "twenty trillion, three hundred forty-five billion, thirty-one million, two hundred thirty-five thousand, one hundred fifty-one".