31000201429 has 4 divisors (see below), whose sum is σ = 31236844320. Its totient is φ = 30763558540.

The previous prime is 31000201409. The next prime is 31000201447. The reversal of 31000201429 is 92410200013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31000201429 is a prime.

It is a super-2 number, since 2×31000201429² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31000201409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118321249 + ... + 118321510.

It is an arithmetic number, because the mean of its divisors is an integer number (7809211080).

Almost surely, 2^31000201429 is an apocalyptic number.

It is an amenable number.

31000201429 is a deficient number, since it is larger than the sum of its proper divisors (236642891).

31000201429 is a wasteful number, since it uses less digits than its factorization.

31000201429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236642890.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 31000201429 in words is "thirty-one billion, two hundred one thousand, four hundred twenty-nine".