31402213001 has 2 divisors, whose sum is σ = 31402213002. Its totient is φ = 31402213000.

The previous prime is 31402212937. The next prime is 31402213021. The reversal of 31402213001 is 10031220413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17789157376 + 13613055625 = 133376^2 + 116675^2 .

It is a cyclic number.

It is not a de Polignac number, because 31402213001 - 2⁶ = 31402212937 is a prime.

It is not a weakly prime, because it can be changed into another prime (31402213021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15701106500 + 15701106501.

It is an arithmetic number, because the mean of its divisors is an integer number (15701106501).

Almost surely, 2^31402213001 is an apocalyptic number.

It is an amenable number.

31402213001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31402213001 is an equidigital number, since it uses as much as digits as its factorization.

31402213001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31402213001 its reverse (10031220413), we get a palindrome (41433433414).

The spelling of 31402213001 in words is "thirty-one billion, four hundred two million, two hundred thirteen thousand, one".