101400523 has 4 divisors (see below), whose sum is σ = 115886320. Its totient is φ = 86914728.

The previous prime is 101400499. The next prime is 101400539. The reversal of 101400523 is 325004101.

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-101400523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101400497 and 101400506.

It is not an unprimeable number, because it can be changed into a prime (101400023) 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, 7242888 + ... + 7242901.

It is an arithmetic number, because the mean of its divisors is an integer number (28971580).

Almost surely, 2^101400523 is an apocalyptic number.

101400523 is a deficient number, since it is larger than the sum of its proper divisors (14485797).

101400523 is an equidigital number, since it uses as much as digits as its factorization.

101400523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14485796.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 101400523 is about 10069.7826689557. The cubic root of 101400523 is about 466.3157294124.

Adding to 101400523 its reverse (325004101), we get a palindrome (426404624).

The spelling of 101400523 in words is "one hundred one million, four hundred thousand, five hundred twenty-three".