101023321421 has 8 divisors (see below), whose sum is σ = 110265624000. Its totient is φ = 91790746240.

The previous prime is 101023321393. The next prime is 101023321439. The reversal of 101023321421 is 124123320101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101023321421 is a prime.

It is a super-2 number, since 2×101023321421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101023321393 and 101023321402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101023321621) 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, 2410121 + ... + 2451678.

It is an arithmetic number, because the mean of its divisors is an integer number (13783203000).

Almost surely, 2^101023321421 is an apocalyptic number.

101023321421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101023321421 is a deficient number, since it is larger than the sum of its proper divisors (9242302579).

101023321421 is a wasteful number, since it uses less digits than its factorization.

101023321421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4863699.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 101023321421 its reverse (124123320101), we get a palindrome (225146641522).

The spelling of 101023321421 in words is "one hundred one billion, twenty-three million, three hundred twenty-one thousand, four hundred twenty-one".