201312443015454 has 8 divisors (see below), whose sum is σ = 402624886030920. Its totient is φ = 67104147671816.

The previous prime is 201312443015191. The next prime is 201312443015507. The reversal of 201312443015454 is 454510344213102.

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

201312443015454 is an admirable number.

It is a super-2 number, since 2×201312443015454² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16776036917949 + ... + 16776036917960.

It is an arithmetic number, because the mean of its divisors is an integer number (50328110753865).

Almost surely, 2^{201312443015454} is an apocalyptic number.

201312443015454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201312443015454 is a wasteful number, since it uses less digits than its factorization.

201312443015454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33552073835914.

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 201312443015454 its reverse (454510344213102), we get a palindrome (655822787228556).

The spelling of 201312443015454 in words is "two hundred one trillion, three hundred twelve billion, four hundred forty-three million, fifteen thousand, four hundred fifty-four".