101343021 has 32 divisors (see below), whose sum is σ = 151656960. Its totient is φ = 59788800.

The previous prime is 101342987. The next prime is 101343031. The reversal of 101343021 is 120343101.

It is not a de Polignac number, because 101343021 - 2⁶ = 101342957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101343031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97020 + ... + 98058.

It is an arithmetic number, because the mean of its divisors is an integer number (4739280).

Almost surely, 2^101343021 is an apocalyptic number.

It is an amenable number.

101343021 is a deficient number, since it is larger than the sum of its proper divisors (50313939).

101343021 is a wasteful number, since it uses less digits than its factorization.

101343021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157.

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

The square root of 101343021 is about 10066.9270882430. The cubic root of 101343021 is about 466.2275669571.

Adding to 101343021 its reverse (120343101), we get a palindrome (221686122).

The spelling of 101343021 in words is "one hundred one million, three hundred forty-three thousand, twenty-one".