10020543454397 has 8 divisors (see below), whose sum is σ = 11457547542336. Its totient is φ = 8584913836512.

The previous prime is 10020543454393. The next prime is 10020543454459. The reversal of 10020543454397 is 79345434502001.

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 10020543454397 - 2² = 10020543454393 is a prime.

It is a super-2 number, since 2×10020543454397² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020543454391) 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, 343601888 + ... + 343631049.

It is an arithmetic number, because the mean of its divisors is an integer number (1432193442792).

Almost surely, 2^{10020543454397} is an apocalyptic number.

It is an amenable number.

10020543454397 is a deficient number, since it is larger than the sum of its proper divisors (1437004087939).

10020543454397 is an equidigital number, since it uses as much as digits as its factorization.

10020543454397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687235027.

The product of its (nonzero) digits is 1814400, while the sum is 47.

Adding to 10020543454397 its reverse (79345434502001), we get a palindrome (89365977956398).

The spelling of 10020543454397 in words is "ten trillion, twenty billion, five hundred forty-three million, four hundred fifty-four thousand, three hundred ninety-seven".