20107455043 has 4 divisors (see below), whose sum is σ = 21654182368. Its totient is φ = 18560727720.

The previous prime is 20107454987. The next prime is 20107455059. The reversal of 20107455043 is 34055470102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20107455043 - 2¹³ = 20107446851 is a prime.

It is a super-2 number, since 2×20107455043² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20107454996 and 20107455014.

It is not an unprimeable number, because it can be changed into a prime (20107456043) 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, 773363643 + ... + 773363668.

It is an arithmetic number, because the mean of its divisors is an integer number (5413545592).

Almost surely, 2^20107455043 is an apocalyptic number.

20107455043 is a deficient number, since it is larger than the sum of its proper divisors (1546727325).

20107455043 is a wasteful number, since it uses less digits than its factorization.

20107455043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546727324.

The product of its (nonzero) digits is 16800, while the sum is 31.

The spelling of 20107455043 in words is "twenty billion, one hundred seven million, four hundred fifty-five thousand, forty-three".