31152314429 has 2 divisors, whose sum is σ = 31152314430. Its totient is φ = 31152314428.

The previous prime is 31152314357. The next prime is 31152314461. The reversal of 31152314429 is 92441325113.

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., 31116254404 + 36060025 = 176398^2 + 6005^2 .

It is a cyclic number.

It is not a de Polignac number, because 31152314429 - 2²⁰ = 31151265853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31152314029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15576157214 + 15576157215.

It is an arithmetic number, because the mean of its divisors is an integer number (15576157215).

Almost surely, 2^31152314429 is an apocalyptic number.

It is an amenable number.

31152314429 is a deficient number, since it is larger than the sum of its proper divisors (1).

31152314429 is an equidigital number, since it uses as much as digits as its factorization.

31152314429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The spelling of 31152314429 in words is "thirty-one billion, one hundred fifty-two million, three hundred fourteen thousand, four hundred twenty-nine".