61121011263 has 8 divisors (see below), whose sum is σ = 87763503408. Its totient is φ = 37612929984.

The previous prime is 61121011249. The next prime is 61121011267. The reversal of 61121011263 is 36211012116.

It is a happy number.

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

It is not a de Polignac number, because 61121011263 - 2⁴ = 61121011247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61121011267) 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, 783602670 + ... + 783602747.

It is an arithmetic number, because the mean of its divisors is an integer number (10970437926).

Almost surely, 2^61121011263 is an apocalyptic number.

61121011263 is a deficient number, since it is larger than the sum of its proper divisors (26642492145).

61121011263 is a wasteful number, since it uses less digits than its factorization.

61121011263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567205433.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 61121011263 its reverse (36211012116), we get a palindrome (97332023379).

The spelling of 61121011263 in words is "sixty-one billion, one hundred twenty-one million, eleven thousand, two hundred sixty-three".