20450210431346 has 4 divisors (see below), whose sum is σ = 30675315647022. Its totient is φ = 10225105215672.

The previous prime is 20450210431337. The next prime is 20450210431487. The reversal of 20450210431346 is 64313401205402.

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

It can be written as a sum of positive squares in only one way, i.e., 13751229310225 + 6698981121121 = 3708265^2 + 2588239^2 .

It is a super-2 number, since 2×20450210431346² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5112552607835 + ... + 5112552607838.

Almost surely, 2^{20450210431346} is an apocalyptic number.

20450210431346 is a deficient number, since it is larger than the sum of its proper divisors (10225105215676).

20450210431346 is a wasteful number, since it uses less digits than its factorization.

20450210431346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10225105215675.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 20450210431346 its reverse (64313401205402), we get a palindrome (84763611636748).

The spelling of 20450210431346 in words is "twenty trillion, four hundred fifty billion, two hundred ten million, four hundred thirty-one thousand, three hundred forty-six".