31134401231 has 8 divisors (see below), whose sum is σ = 31564340064. Its totient is φ = 30704555520.

The previous prime is 31134401209. The next prime is 31134401269. The reversal of 31134401231 is 13210443113.

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 31134401231 - 2¹⁰ = 31134400207 is a prime.

It is a super-2 number, since 2×31134401231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31134401197 and 31134401206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31134401731) 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, 901166 + ... + 935076.

It is an arithmetic number, because the mean of its divisors is an integer number (3945542508).

Almost surely, 2^31134401231 is an apocalyptic number.

31134401231 is a deficient number, since it is larger than the sum of its proper divisors (429938833).

31134401231 is a wasteful number, since it uses less digits than its factorization.

31134401231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46561.

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

Adding to 31134401231 its reverse (13210443113), we get a palindrome (44344844344).

The spelling of 31134401231 in words is "thirty-one billion, one hundred thirty-four million, four hundred one thousand, two hundred thirty-one".