21031030210001 has 16 divisors (see below), whose sum is σ = 24389291955840. Its totient is φ = 17762848750080.

The previous prime is 21031030209913. The next prime is 21031030210039. The reversal of 21031030210001 is 10001203013012.

It is not a de Polignac number, because 21031030210001 - 2¹⁰ = 21031030208977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21031030510001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67472315 + ... + 67783296.

It is an arithmetic number, because the mean of its divisors is an integer number (1524330747240).

Almost surely, 2^{21031030210001} is an apocalyptic number.

It is an amenable number.

21031030210001 is a deficient number, since it is larger than the sum of its proper divisors (3358261745839).

21031030210001 is a wasteful number, since it uses less digits than its factorization.

21031030210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135255944.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21031030210001 its reverse (10001203013012), we get a palindrome (31032233223013).

The spelling of 21031030210001 in words is "twenty-one trillion, thirty-one billion, thirty million, two hundred ten thousand, one".