2054431052121 has 12 divisors (see below), whose sum is σ = 3186464489232. Its totient is φ = 1173960601128.

The previous prime is 2054431052111. The next prime is 2054431052131. The reversal of 2054431052121 is 1212501344502.

It is an interprime number because it is at equal distance from previous prime (2054431052111) and next prime (2054431052131).

It is not a de Polignac number, because 2054431052121 - 2²⁶ = 2054363943257 is a prime.

It is a super-3 number, since 3×2054431052121³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2054431052111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6987860575 + ... + 6987860868.

It is an arithmetic number, because the mean of its divisors is an integer number (265538707436).

Almost surely, 2^{2054431052121} is an apocalyptic number.

2054431052121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2054431052121 is a deficient number, since it is larger than the sum of its proper divisors (1132033437111).

2054431052121 is a wasteful number, since it uses less digits than its factorization.

2054431052121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13975721460 (or 13975721453 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 2054431052121 its reverse (1212501344502), we get a palindrome (3266932396623).

The spelling of 2054431052121 in words is "two trillion, fifty-four billion, four hundred thirty-one million, fifty-two thousand, one hundred twenty-one".