31023020201377 has 2 divisors, whose sum is σ = 31023020201378. Its totient is φ = 31023020201376.

The previous prime is 31023020201357. The next prime is 31023020201387. The reversal of 31023020201377 is 77310202032013.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26619418678801 + 4403601522576 = 5159401^2 + 2098476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31023020201377 is a prime.

It is a super-2 number, since 2×31023020201377² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31023020201357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511510100688 + 15511510100689.

It is an arithmetic number, because the mean of its divisors is an integer number (15511510100689).

Almost surely, 2^{31023020201377} is an apocalyptic number.

It is an amenable number.

31023020201377 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023020201377 is an equidigital number, since it uses as much as digits as its factorization.

31023020201377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 31.

The spelling of 31023020201377 in words is "thirty-one trillion, twenty-three billion, twenty million, two hundred one thousand, three hundred seventy-seven".