20151231141354 has 16 divisors (see below), whose sum is σ = 40303079718048. Its totient is φ = 6716974141232.

The previous prime is 20151231141263. The next prime is 20151231141451. The reversal of 20151231141354 is 45314113215102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25301652 + ... + 26085935.

It is an arithmetic number, because the mean of its divisors is an integer number (2518942482378).

Almost surely, 2^{20151231141354} is an apocalyptic number.

20151231141354 is an abundant number, since it is smaller than the sum of its proper divisors (20151848576694).

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

20151231141354 is a wasteful number, since it uses less digits than its factorization.

20151231141354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51452949.

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 20151231141354 its reverse (45314113215102), we get a palindrome (65465344356456).

The spelling of 20151231141354 in words is "twenty trillion, one hundred fifty-one billion, two hundred thirty-one million, one hundred forty-one thousand, three hundred fifty-four".