201024123631 has 2 divisors, whose sum is σ = 201024123632. Its totient is φ = 201024123630.

The previous prime is 201024123583. The next prime is 201024123649. The reversal of 201024123631 is 136321420102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201024123631 - 2⁹ = 201024123119 is a prime.

It is a super-2 number, since 2×201024123631² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201024123596 and 201024123605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201024123331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100512061815 + 100512061816.

It is an arithmetic number, because the mean of its divisors is an integer number (100512061816).

Almost surely, 2^201024123631 is an apocalyptic number.

201024123631 is a deficient number, since it is larger than the sum of its proper divisors (1).

201024123631 is an equidigital number, since it uses as much as digits as its factorization.

201024123631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 201024123631 its reverse (136321420102), we get a palindrome (337345543733).

The spelling of 201024123631 in words is "two hundred one billion, twenty-four million, one hundred twenty-three thousand, six hundred thirty-one".