101401263 has 6 divisors (see below), whose sum is σ = 146468504. Its totient is φ = 67600836.

The previous prime is 101401229. The next prime is 101401297. The reversal of 101401263 is 362104101.

It is a happy number.

101401263 is a `hidden beast` number, since 1 + 0 + 1 + 401 + 263 = 666.

It is an interprime number because it is at equal distance from previous prime (101401229) and next prime (101401297).

It is not a de Polignac number, because 101401263 - 2⁶ = 101401199 is a prime.

It is a super-2 number, since 2×101401263² = 20564432275990338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101401213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5633395 + ... + 5633412.

Almost surely, 2^101401263 is an apocalyptic number.

101401263 is a deficient number, since it is larger than the sum of its proper divisors (45067241).

101401263 is a wasteful number, since it uses less digits than its factorization.

101401263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11266813 (or 11266810 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 101401263 is about 10069.8194124820. The cubic root of 101401263 is about 466.3168637681.

Adding to 101401263 its reverse (362104101), we get a palindrome (463505364).

The spelling of 101401263 in words is "one hundred one million, four hundred one thousand, two hundred sixty-three".