31401119 has 2 divisors, whose sum is σ = 31401120. Its totient is φ = 31401118.

The previous prime is 31401101. The next prime is 31401133. The reversal of 31401119 is 91110413.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31401119 is a prime.

It is a super-2 number, since 2×31401119² = 1972060548904322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31401119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31401179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15700559 + 15700560.

It is an arithmetic number, because the mean of its divisors is an integer number (15700560).

Almost surely, 2^31401119 is an apocalyptic number.

31401119 is a deficient number, since it is larger than the sum of its proper divisors (1).

31401119 is an equidigital number, since it uses as much as digits as its factorization.

31401119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 31401119 is about 5603.6701366158. The cubic root of 31401119 is about 315.4871742647.

The spelling of 31401119 in words is "thirty-one million, four hundred one thousand, one hundred nineteen".