101206431 has 12 divisors (see below), whose sum is σ = 146443752. Its totient is φ = 67352496.

The previous prime is 101206429. The next prime is 101206447. The reversal of 101206431 is 134602101.

It is a happy number.

101206431 is a `hidden beast` number, since 1 + 0 + 1 + 20 + 643 + 1 = 666.

It is not a de Polignac number, because 101206431 - 2¹ = 101206429 is a prime.

It is a super-2 number, since 2×101206431² = 20485483351515522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101206411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4296 + ... + 14861.

It is an arithmetic number, because the mean of its divisors is an integer number (12203646).

Almost surely, 2^101206431 is an apocalyptic number.

101206431 is a deficient number, since it is larger than the sum of its proper divisors (45237321).

101206431 is a wasteful number, since it uses less digits than its factorization.

101206431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19750 (or 19747 counting only the distinct ones).

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

The square root of 101206431 is about 10060.1407047814. The cubic root of 101206431 is about 466.0180124679.

Adding to 101206431 its reverse (134602101), we get a palindrome (235808532).

The spelling of 101206431 in words is "one hundred one million, two hundred six thousand, four hundred thirty-one".