20119977233 has 2 divisors, whose sum is σ = 20119977234. Its totient is φ = 20119977232.

The previous prime is 20119977181. The next prime is 20119977259. The reversal of 20119977233 is 33277991102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19895666704 + 224310529 = 141052^2 + 14977^2 .

It is a cyclic number.

It is not a de Polignac number, because 20119977233 - 2¹⁴ = 20119960849 is a prime.

It is not a weakly prime, because it can be changed into another prime (20119977533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10059988616 + 10059988617.

It is an arithmetic number, because the mean of its divisors is an integer number (10059988617).

Almost surely, 2^20119977233 is an apocalyptic number.

It is an amenable number.

20119977233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20119977233 is an equidigital number, since it uses as much as digits as its factorization.

20119977233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884, while the sum is 44.

The spelling of 20119977233 in words is "twenty billion, one hundred nineteen million, nine hundred seventy-seven thousand, two hundred thirty-three".