20101143242210 has 16 divisors (see below), whose sum is σ = 36182164327992. Its totient is φ = 8040433632000.

The previous prime is 20101143242171. The next prime is 20101143242293. The reversal of 20101143242210 is 1224234110102.

It can be written as a sum of positive squares in 4 ways, for example, as 15023786858809 + 5077356383401 = 3876053^2 + 2253299^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841850 + ... + 6396170.

Almost surely, 2^{20101143242210} is an apocalyptic number.

20101143242210 is a deficient number, since it is larger than the sum of its proper divisors (16081021085782).

20101143242210 is a wasteful number, since it uses less digits than its factorization.

20101143242210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916229.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 20101143242210 its reverse (1224234110102), we get a palindrome (21325377352312).

The spelling of 20101143242210 in words is "twenty trillion, one hundred one billion, one hundred forty-three million, two hundred forty-two thousand, two hundred ten".