121231031300131 has 16 divisors (see below), whose sum is σ = 124551594642816. Its totient is φ = 117912791235456.

The previous prime is 121231031300077. The next prime is 121231031300179. The reversal of 121231031300131 is 131003130132121.

It is a cyclic number.

It is not a de Polignac number, because 121231031300131 - 2⁹ = 121231031299619 is a prime.

It is a super-2 number, since 2×121231031300131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121231031307131) 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, 2816880945 + ... + 2816923981.

It is an arithmetic number, because the mean of its divisors is an integer number (7784474665176).

Almost surely, 2^{121231031300131} is an apocalyptic number.

121231031300131 is a deficient number, since it is larger than the sum of its proper divisors (3320563342685).

121231031300131 is a wasteful number, since it uses less digits than its factorization.

121231031300131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68238.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 121231031300131 its reverse (131003130132121), we get a palindrome (252234161432252).

The spelling of 121231031300131 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, thirty-one million, three hundred thousand, one hundred thirty-one".