31400214401 has 2 divisors, whose sum is σ = 31400214402. Its totient is φ = 31400214400.

The previous prime is 31400214301. The next prime is 31400214421. The reversal of 31400214401 is 10441200413.

It is an a-pointer prime, because the next prime (31400214421) can be obtained adding 31400214401 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27151130176 + 4249084225 = 164776^2 + 65185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31400214401 is a prime.

It is not a weakly prime, because it can be changed into another prime (31400214421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15700107200 + 15700107201.

It is an arithmetic number, because the mean of its divisors is an integer number (15700107201).

Almost surely, 2^31400214401 is an apocalyptic number.

It is an amenable number.

31400214401 is a deficient number, since it is larger than the sum of its proper divisors (1).

31400214401 is an equidigital number, since it uses as much as digits as its factorization.

31400214401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 31400214401 its reverse (10441200413), we get a palindrome (41841414814).

The spelling of 31400214401 in words is "thirty-one billion, four hundred million, two hundred fourteen thousand, four hundred one".