20101400121 has 8 divisors (see below), whose sum is σ = 29238400224. Its totient is φ = 12182666720.

The previous prime is 20101400119. The next prime is 20101400149. The reversal of 20101400121 is 12100410102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20101400121 - 2¹ = 20101400119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20101400097 and 20101400106.

It is not an unprimeable number, because it can be changed into a prime (20101401121) 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, 304566636 + ... + 304566701.

It is an arithmetic number, because the mean of its divisors is an integer number (3654800028).

Almost surely, 2^20101400121 is an apocalyptic number.

It is an amenable number.

20101400121 is a deficient number, since it is larger than the sum of its proper divisors (9137000103).

20101400121 is a wasteful number, since it uses less digits than its factorization.

20101400121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609133351.

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

Adding to 20101400121 its reverse (12100410102), we get a palindrome (32201810223).

The spelling of 20101400121 in words is "twenty billion, one hundred one million, four hundred thousand, one hundred twenty-one".