20113151497 has 4 divisors (see below), whose sum is σ = 20413347856. Its totient is φ = 19812955140.

The previous prime is 20113151489. The next prime is 20113151519. The reversal of 20113151497 is 79415131102.

It is a happy number.

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 20113151497 - 2³ = 20113151489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113151477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150098079 + ... + 150098212.

It is an arithmetic number, because the mean of its divisors is an integer number (5103336964).

Almost surely, 2^20113151497 is an apocalyptic number.

It is an amenable number.

20113151497 is a deficient number, since it is larger than the sum of its proper divisors (300196359).

20113151497 is an equidigital number, since it uses as much as digits as its factorization.

20113151497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300196358.

The product of its (nonzero) digits is 7560, while the sum is 34.

Adding to 20113151497 its reverse (79415131102), we get a palindrome (99528282599).

The spelling of 20113151497 in words is "twenty billion, one hundred thirteen million, one hundred fifty-one thousand, four hundred ninety-seven".