20354134313997 has 12 divisors (see below), whose sum is σ = 32073181343424. Its totient is φ = 12335838978120.

The previous prime is 20354134313983. The next prime is 20354134314011. The reversal of 20354134313997 is 79931343145302.

It is a happy number.

20354134313997 is a `hidden beast` number, since 2 + 0 + 3 + 5 + 413 + 4 + 3 + 139 + 97 = 666.

It is an interprime number because it is at equal distance from previous prime (20354134313983) and next prime (20354134314011).

It is not a de Polignac number, because 20354134313997 - 2¹⁰ = 20354134312973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20354134313977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102798658053 + ... + 102798658250.

It is an arithmetic number, because the mean of its divisors is an integer number (2672765111952).

Almost surely, 2^{20354134313997} is an apocalyptic number.

It is an amenable number.

20354134313997 is a deficient number, since it is larger than the sum of its proper divisors (11719047029427).

20354134313997 is a wasteful number, since it uses less digits than its factorization.

20354134313997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205597316320 (or 205597316317 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 54.

The spelling of 20354134313997 in words is "twenty trillion, three hundred fifty-four billion, one hundred thirty-four million, three hundred thirteen thousand, nine hundred ninety-seven".