101420204121 has 24 divisors (see below), whose sum is σ = 149298080256. Its totient is φ = 66320785440.

The previous prime is 101420204113. The next prime is 101420204129. The reversal of 101420204121 is 121402024101.

101420204121 is a `hidden beast` number, since 101 + 420 + 20 + 4 + 121 = 666.

It is an interprime number because it is at equal distance from previous prime (101420204113) and next prime (101420204129).

It is not a de Polignac number, because 101420204121 - 2³ = 101420204113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101420204094 and 101420204103.

It is not an unprimeable number, because it can be changed into a prime (101420204129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1998856 + ... + 2048966.

It is an arithmetic number, because the mean of its divisors is an integer number (6220753344).

Almost surely, 2^101420204121 is an apocalyptic number.

It is an amenable number.

101420204121 is a deficient number, since it is larger than the sum of its proper divisors (47877876135).

101420204121 is a wasteful number, since it uses less digits than its factorization.

101420204121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54413 (or 54410 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 101420204121 its reverse (121402024101), we get a palindrome (222822228222).

The spelling of 101420204121 in words is "one hundred one billion, four hundred twenty million, two hundred four thousand, one hundred twenty-one".