121130313031 has 16 divisors (see below), whose sum is σ = 149187225600. Its totient is φ = 95772663648.

The previous prime is 121130313023. The next prime is 121130313047. The reversal of 121130313031 is 130313031121.

It is a cyclic number.

It is not a de Polignac number, because 121130313031 - 2³ = 121130313023 is a prime.

It is a super-2 number, since 2×121130313031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121130313091) 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, 331561 + ... + 593458.

It is an arithmetic number, because the mean of its divisors is an integer number (9324201600).

Almost surely, 2^121130313031 is an apocalyptic number.

121130313031 is a deficient number, since it is larger than the sum of its proper divisors (28056912569).

121130313031 is a wasteful number, since it uses less digits than its factorization.

121130313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926478.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 121130313031 its reverse (130313031121), we get a palindrome (251443344152).

It can be divided in two parts, 121 and 130313031, that multiplied together give a palindrome (15767876751).

The spelling of 121130313031 in words is "one hundred twenty-one billion, one hundred thirty million, three hundred thirteen thousand, thirty-one".