101023431 has 8 divisors (see below), whose sum is σ = 138338544. Its totient is φ = 65528640.

The previous prime is 101023427. The next prime is 101023487. The reversal of 101023431 is 134320101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101023431 - 2² = 101023427 is a prime.

It is a super-2 number, since 2×101023431² = 20411467222023522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101023431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101023411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454950 + ... + 455171.

It is an arithmetic number, because the mean of its divisors is an integer number (17292318).

Almost surely, 2^101023431 is an apocalyptic number.

101023431 is a deficient number, since it is larger than the sum of its proper divisors (37315113).

101023431 is an equidigital number, since it uses as much as digits as its factorization.

101023431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910161.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 101023431 is about 10051.0412893391. The cubic root of 101023431 is about 465.7369606658.

Adding to 101023431 its reverse (134320101), we get a palindrome (235343532).

The spelling of 101023431 in words is "one hundred one million, twenty-three thousand, four hundred thirty-one".