31401342311 has 8 divisors (see below), whose sum is σ = 33282048384. Its totient is φ = 29524366080.

The previous prime is 31401342307. The next prime is 31401342331. The reversal of 31401342311 is 11324310413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31401342311 - 2² = 31401342307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31401342331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915110 + ... + 948803.

It is an arithmetic number, because the mean of its divisors is an integer number (4160256048).

Almost surely, 2^31401342311 is an apocalyptic number.

31401342311 is a deficient number, since it is larger than the sum of its proper divisors (1880706073).

31401342311 is a wasteful number, since it uses less digits than its factorization.

31401342311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864921.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31401342311 its reverse (11324310413), we get a palindrome (42725652724).

The spelling of 31401342311 in words is "thirty-one billion, four hundred one million, three hundred forty-two thousand, three hundred eleven".