31012001103 has 16 divisors (see below), whose sum is σ = 43808001120. Its totient is φ = 19446798336.

The previous prime is 31012001101. The next prime is 31012001129. The reversal of 31012001103 is 30110021013.

It is not a de Polignac number, because 31012001103 - 2¹ = 31012001101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012001101) 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, 97050 + ... + 267287.

It is an arithmetic number, because the mean of its divisors is an integer number (2738000070).

Almost surely, 2^31012001103 is an apocalyptic number.

31012001103 is a deficient number, since it is larger than the sum of its proper divisors (12796000017).

31012001103 is a wasteful number, since it uses less digits than its factorization.

31012001103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366026.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31012001103 its reverse (30110021013), we get a palindrome (61122022116).

The spelling of 31012001103 in words is "thirty-one billion, twelve million, one thousand, one hundred three".