101016631 has 4 divisors (see below), whose sum is σ = 104275264. Its totient is φ = 97758000.

The previous prime is 101016613. The next prime is 101016679. The reversal of 101016631 is 136610101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101016631 is a prime.

It is a super-2 number, since 2×101016631² = 20408719477180322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101016599 and 101016608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101016611) 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, 1629270 + ... + 1629331.

It is an arithmetic number, because the mean of its divisors is an integer number (26068816).

Almost surely, 2^101016631 is an apocalyptic number.

101016631 is a deficient number, since it is larger than the sum of its proper divisors (3258633).

101016631 is an equidigital number, since it uses as much as digits as its factorization.

101016631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258632.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 101016631 is about 10050.7030102376. The cubic root of 101016631 is about 465.7265106729.

Adding to 101016631 its reverse (136610101), we get a palindrome (237626732).

The spelling of 101016631 in words is "one hundred one million, sixteen thousand, six hundred thirty-one".