20154691051283 has 2 divisors, whose sum is σ = 20154691051284. Its totient is φ = 20154691051282.

The previous prime is 20154691051217. The next prime is 20154691051343. The reversal of 20154691051283 is 38215019645102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20154691051283 - 2³⁶ = 20085971574547 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20154691057283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10077345525641 + 10077345525642.

It is an arithmetic number, because the mean of its divisors is an integer number (10077345525642).

Almost surely, 2^{20154691051283} is an apocalyptic number.

20154691051283 is a deficient number, since it is larger than the sum of its proper divisors (1).

20154691051283 is an equidigital number, since it uses as much as digits as its factorization.

20154691051283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 20154691051283 in words is "twenty trillion, one hundred fifty-four billion, six hundred ninety-one million, fifty-one thousand, two hundred eighty-three".