31012211141 has 16 divisors (see below), whose sum is σ = 33189869760. Its totient is φ = 28890639360.

The previous prime is 31012211137. The next prime is 31012211147. The reversal of 31012211141 is 14111221013.

It is a cyclic number.

It is not a de Polignac number, because 31012211141 - 2² = 31012211137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012211147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 713411 + ... + 755631.

It is an arithmetic number, because the mean of its divisors is an integer number (2074366860).

Almost surely, 2^31012211141 is an apocalyptic number.

It is an amenable number.

31012211141 is a deficient number, since it is larger than the sum of its proper divisors (2177658619).

31012211141 is a wasteful number, since it uses less digits than its factorization.

31012211141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42884.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 31012211141 its reverse (14111221013), we get a palindrome (45123432154).

The spelling of 31012211141 in words is "thirty-one billion, twelve million, two hundred eleven thousand, one hundred forty-one".