101293421 has 2 divisors, whose sum is σ = 101293422. Its totient is φ = 101293420.

The previous prime is 101293397. The next prime is 101293453. The reversal of 101293421 is 124392101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74149321 + 27144100 = 8611^2 + 5210^2 .

It is a cyclic number.

It is not a de Polignac number, because 101293421 - 2¹⁴ = 101277037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101293471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50646710 + 50646711.

It is an arithmetic number, because the mean of its divisors is an integer number (50646711).

Almost surely, 2^101293421 is an apocalyptic number.

It is an amenable number.

101293421 is a deficient number, since it is larger than the sum of its proper divisors (1).

101293421 is an equidigital number, since it uses as much as digits as its factorization.

101293421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 101293421 is about 10064.4632743132. The cubic root of 101293421 is about 466.1514931082.

The spelling of 101293421 in words is "one hundred one million, two hundred ninety-three thousand, four hundred twenty-one".