121452520031 has 8 divisors (see below), whose sum is σ = 121811072400. Its totient is φ = 121094439040.

The previous prime is 121452520003. The next prime is 121452520061. The reversal of 121452520031 is 130025254121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121452520031 - 2²² = 121448325727 is a prime.

It is a super-2 number, since 2×121452520031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121452520001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401591 + ... + 635751.

It is an arithmetic number, because the mean of its divisors is an integer number (15226384050).

Almost surely, 2^121452520031 is an apocalyptic number.

121452520031 is a deficient number, since it is larger than the sum of its proper divisors (358552369).

121452520031 is a wasteful number, since it uses less digits than its factorization.

121452520031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235689.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 121452520031 its reverse (130025254121), we get a palindrome (251477774152).

The spelling of 121452520031 in words is "one hundred twenty-one billion, four hundred fifty-two million, five hundred twenty thousand, thirty-one".