121031457 has 8 divisors (see below), whose sum is σ = 162403776. Its totient is φ = 80173392.

The previous prime is 121031437. The next prime is 121031461. The reversal of 121031457 is 754130121.

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

It is not a de Polignac number, because 121031457 - 2⁸ = 121031201 is a prime.

It is a super-2 number, since 2×121031457² = 29297227167085698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121031437) 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, 128013 + ... + 128954.

It is an arithmetic number, because the mean of its divisors is an integer number (20300472).

Almost surely, 2^121031457 is an apocalyptic number.

It is an amenable number.

121031457 is a deficient number, since it is larger than the sum of its proper divisors (41372319).

121031457 is a wasteful number, since it uses less digits than its factorization.

121031457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257127.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 121031457 is about 11001.4297707162. The cubic root of 121031457 is about 494.6516026146.

Adding to 121031457 its reverse (754130121), we get a palindrome (875161578).

The spelling of 121031457 in words is "one hundred twenty-one million, thirty-one thousand, four hundred fifty-seven".