20533231157371 has 2 divisors, whose sum is σ = 20533231157372. Its totient is φ = 20533231157370.

The previous prime is 20533231157297. The next prime is 20533231157407. The reversal of 20533231157371 is 17375113233502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20533231157371 - 2³³ = 20524641222779 is a prime.

It is a super-2 number, since 2×20533231157371² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20533235157371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10266615578685 + 10266615578686.

It is an arithmetic number, because the mean of its divisors is an integer number (10266615578686).

Almost surely, 2^{20533231157371} is an apocalyptic number.

20533231157371 is a deficient number, since it is larger than the sum of its proper divisors (1).

20533231157371 is an equidigital number, since it uses as much as digits as its factorization.

20533231157371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 43.

The spelling of 20533231157371 in words is "twenty trillion, five hundred thirty-three billion, two hundred thirty-one million, one hundred fifty-seven thousand, three hundred seventy-one".