101402121 has 4 divisors (see below), whose sum is σ = 135202832. Its totient is φ = 67601412.

The previous prime is 101402117. The next prime is 101402123. The reversal of 101402121 is 121204101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 101402121 - 2² = 101402117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101402097 and 101402106.

It is not an unprimeable number, because it can be changed into a prime (101402123) 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, 16900351 + ... + 16900356.

It is an arithmetic number, because the mean of its divisors is an integer number (33800708).

Almost surely, 2^101402121 is an apocalyptic number.

It is an amenable number.

101402121 is a deficient number, since it is larger than the sum of its proper divisors (33800711).

101402121 is an equidigital number, since it uses as much as digits as its factorization.

101402121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33800710.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 101402121 is about 10069.8620149434. The cubic root of 101402121 is about 466.3181790007.

Adding to 101402121 its reverse (121204101), we get a palindrome (222606222).

The spelling of 101402121 in words is "one hundred one million, four hundred two thousand, one hundred twenty-one".