31354121306 has 16 divisors (see below), whose sum is σ = 48185215848. Its totient is φ = 15292492800.

The previous prime is 31354121231. The next prime is 31354121311. The reversal of 31354121306 is 60312145313.

It can be written as a sum of positive squares in 4 ways, for example, as 14659155625 + 16694965681 = 121075^2 + 129209^2 .

It is a super-4 number, since 4×31354121306⁴ (a number of 43 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645776 + ... + 692628.

Almost surely, 2^31354121306 is an apocalyptic number.

31354121306 is a deficient number, since it is larger than the sum of its proper divisors (16831094542).

31354121306 is a wasteful number, since it uses less digits than its factorization.

31354121306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55057.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 31354121306 its reverse (60312145313), we get a palindrome (91666266619).

The spelling of 31354121306 in words is "thirty-one billion, three hundred fifty-four million, one hundred twenty-one thousand, three hundred six".